I absolutely love mine, but it's not without its quirks. Removing the CE2 for the first time can be near impossible but after that its been pretty easy on subsequent removals for me. The delron caps come off pretty easy as well, getting them back on is the trick, the lexon tube will shave the rubber O ring if forced. I wouldn't recommend removing the caps unless absolutely necessary. Adjusting the stem (left over shaft from a cut CE2) is one of the only times I remove the top cap. Can't seem to find anything to insert from underneath to push it up. I use an ego battery to remove these parts and it can be damaged by doing so. I would never attempt this with my Silver Bullet or higher end PV.
As for the CE2, mine is on day 24 and it will not die. The wick has seen better days though, starting to fray. There are some vids on youtube demonstrating "dry burning" to clean the coil, which the CE2 will need after a few tank fulls.