depends on size of load, herb quality, grind, temp setting, etc. I did a quick test last night on heat level 3 (out of 4) with some homegrown carnival. I don't have a good scale, so I had to measure out 0.8g, then divide it in half a few times to get 3 chambers with approx. 0.1g, 0.05g and 0.025g (not sure how accurate). The 0.025g was basically a pinch, and gave a good draw and a half and took 1 1/2 mins from start to last exhale. The 0.05g gave a couple more draws and took around 2 1/2 mins. The 0.1g took around 5 mins. If I crank it to level 4 0.1g would be quite a bit faster, closer to 3 mins, but also gets on the edge on combusting and doesn't taste as good as level 3. I may change the levels a bit still, but I do like the idea of keeping a level that might not taste quite as good but can get the job done real quickly if needed.
yes, but not ready yet
Both glass tubes and the ceramic "L joint" pull out for cleaning.