I have mixed feelings about this vape, I own both the FF1 and 2, they are mostly retired but I broke out the FF2 the other day after not using it for several months and it wouldn't turn on or charge, opened the battery compartment and noticed that the battery had completely split open just from sitting on my shelf. I have 2 spare batteries so not a big deal, at least it didn't explode.
The really unique thing about this vape is that you can start with a cold oven, load it, close the cover, preheat for 5-6 seconds and then take a 10 second or so draw and get a very decent first hit. I finish most bowl in 3-4 hits, stirring after the 2nd, hit #2 is normally the best. The bowls get better as the vape gets hotter, you can do up to 5 bowls on a single charge if you do them in rapid succession and don't let the vape cool down. Flavor is excellent but if you use this vape heavily you will soon discover harshness in the vapor, with really no good options to condition through water. Also, you need a lot of lung power to make this unit shine, the airflow is very restricted and it feels like you are sucking air through a tiny straw. I much prefer to use my desktops as daily drivers, it is also difficult to use the FF2 on the go because you almost have to sit at a desk to reload it, I can't see myself using it outdoors in the wind.