Well, this weekend I went on a trip with my wife, and some friends, and I had to leave the Cloud at home. Seeing as how the WISPR is my only portable and how I've fully given up combustion, I figured now is a good time to give the WISPR a proper review.
Let me start out by saying that having the WISPR as my only portable currently is frightening. Why? Because I fear that the WISPR will not ignite one day. Sometimes, when I click down, it ignites on 1 or 2 tries. Sometimes, I have to click the thing a lot, I mean 10, 20 times before it will ignite. I'm not sure if this is normal or not, or maybe something I'm doing, but it's damn frightening. I always try to keep the unit level when I try to click but that doesn't seem to make a difference.
Ok, now once I got the thing started, and let it heat up, I was able to get some decent cloud production out of it. The pathway between the unit and you is small so the vapor can get hot but it wasn't too bad. I was able to produce decently dark brown ABV and get sufficient vapor production if I kept using the unit :-). I think I could get 4 or 5 sessions out of the butane, but I kept refilling it as soon as I could.
Overall great unit, I love it. I would recommend it if people weren't worried about butane and igniting. It hasn't failed on me and I use it a bunch, but it is damn scary.