I'm going to add a couple more observations.
the twist top to the unit, feels like it shifts to lock in a snug way, as opposed to a clunky, or erratic way, it makes me want to say it is a smooth connection. the top comes on and off with ease, and does not threaten to burn you by having some hot part exposed.
The reason I am mentioning this, is because I realized how easy it is to twist off the top in the heat of a session and even tap it, to get anything off if the screen which may be inhibiting airflow. With the Iolite, If you took the top off, I think you always needed to keep all the material in the top bowl too, which keeps you from cleaning the top screen in any way for more airflow. This Vapir no2.. if airflow is questionable, just twist off the top and tap it or brush the screen with something that won't melt of touching a hot spot, and twist back on with no need to worry about getting it connected back together. On some occasions with the Iolite, I would take off the top in mid session, to stir material and scrape the screen for more possible airflow, but it didn't give me direct access to clear the screen, and it was a lot of exposed metal that did occasionally burn me, AND the top would sometimes be a little picky about how it would fit back together.
So I appreciate the smooth lock and unlock action of the Vapir no2 top, and access to just the screen face which can easily be cleaned off if needed in mid session.
The ability to turn it on and off is also so nice. Compared to the Iolite which keeps burning butane for a few more cycles after turning to off (which also kept me from putting it away since it seems not smart to immediately enclose it while still burning, I know that with the Vapir no 2 that you hit the switch and it is starting to cool immediately. I put my hand around the hottest part of the unit to see if it could be enclosed as soon as turning off, and am still debating it. The heat on the outside, (to the touch of a hand) is muted to the point of feeling like something you might enjoy touching as a hand warmer on a cold day. I think I sensed it was just on the verge of hotness to the touch which made me pay attention but did not cross a threshold which actually required me to pull it off the touch. I think the Iolite was not as friendly to the touch after a longer session was coming to a close.
The ideal, which I will soon test for, is to turn it on, and vape a few hits, and turn it off...to conserve material. And then when ready an hour later for more, turn it back on, and see if a session can be broken into segments which don't require getting VAKED so much in each session.
In My last session yesterday, after seven draws on the Vapir no2 with fresh material in it, I was laughing at how vaked I was. Picture me sitting in my car in a parking lot, actually waiting an hour or two before feeling ready to drive safely. One or two of those seven hits could have been spread out over several hours if I can indeed, flip it on and off. which I think I can. The question is about what the system requires for cleaning (or not) because of heating and cooling the material several times without emptying and cleaning after each use. Does it impair good work of the system to let stuff sit and then reheat it? We shall see.
For the record, there is NO WAY, I could have vaped 7 sessions throughout the day using fresh material in Vapri no2. I think each session with fresh material in it, could last me several hours, especially if using the on off button, and thereby result in my needing to refill it no more than 3-4 times through the day.
The difference in the quality of fresh material taste, and the longevity of the bowl, and the difference of the buzz between the fresh and the ABV is NOT comparable.. as I had felt it was.
The thought keeps going through my mind. I dropped X fresh material into the Iolite, and got it cooked at 190C and a good vape experience for two to three fresh tasting draws. I drop the same into the Vapir no2 at 180C and feel that not only the first few draws are obviously more powerful than the best Iolite draws, but that in Vapir no2, it keeps coming, like I said until about draw number seven in a session. And by that time, I found myself in deep water -over my head in a Buzz that made me have to chill for an hour or two. After seven draws with the Iolite, I would be at the edge of the deep water, but could still function.
Out of frustration a few times with the Iolite, I had to revert to combustion intake just because I had no mre time or patience to see if it would light after 5-20 minutes of "clicking".. This Vapir no 2 is giving me the feeling like I am truly able to throw out my combustion tools.
However, I hear the one gent here who advised to have several vape backups,like in case the Vapir No2 does have some malfunction.
But right now, I am treating the unit like it is gold. Trying not to even bump it, so that I get it to show me how long it can last without malfunctions. If it doesn't develop a problem. I think I am going to be able to report that this is a much better product than the Iolite, for you to spend your 250 bucks on.
Soon I will be taking it on some outdoor ventures and report how it travels while not in use, compared to the Iolite. And that is one thing I am looking forward to since the iolite was so small, it travelled very well. This Vapir no 2 is going to have to fit nicely somewhere in my outdoor gear, in order to be carried with the same no-hassle-storage-while-on-the-move of the Iolite. But in exchange for starting on demand and providing much better hits for longer periods, I think I can figure out a way to adapt to the extra 3-4 inches that the Vapir no 2 has in length. Who knows, I might find a natural nook or cranny in my outdoor gear (mainly a fanny pack I wear, and some deep pockets on my shorts) which house the Vapir no2 at rest with ease!
We shall see.
Let me know if you have other questions or tests or observations you are curious about.