The last bowl was w/o water filtration. I found it less harsh than a Solo or E-nano are at higher temps, but I find taste-wise, at first blush, I get better taste from E-nano and Solo at low temps, which is how I like to consume (mostly). I find if I vape at the highest setting with fresh material, it seems to me some scorching occurs and I cough more as opposed if I take the same material from low to high temp.
I didn't feel it was cooking the herb. There is a top removable portion which includes the mouthpiece. I perceived that the vapor was cooler because of passing through it, but it might be just because they call it a "cooling unit", and I Groked on that.
Since the above only represents 3 1-minute seshes, it stands to reason you could extract more. But I spend 12 minutes with a stem with the Solo, I may feel as if I'm more medicated, but since I've also had 8 more minutes to "feel the glee desend", that may be part of it.
Edit:
The sessions are one minute long, but it does not take much of a draw to lower the temp. So, if you draw while it is heating up, the minute has yet to start, so a person literally could "draw" a longer session by not allowing it to come to temp to start the timer. The unit vibrates when it reaches temp, and when sesh ends. I just did a fresh bowl set for 410, but I kept it at lower temps by inhaling a bit by bit. Yeah I'm going to like playing with this thing...