I for one feel the lack of tech in the Cera is one of it's strongest points and why I am so attracted to them. I love my other vapes for what they are, but know deep down I will be either sending them in for repair/replacement at some point, or simply not being able to use them at all (like all my old e cig gear). None of that stuff is really meant to last much longer than the battery sealed within, that can not be replaced.
TET has captured both function and form with their devices IMO. Granted there were some issues with the T1 line not working well for everyone, part of the growing process, which has led up to our current situation with the improved Cera model.
I am actually hoping this device will be good enough to make me want to get rid of (sell) most of my other vapes that don't stand up to the challenge of longevity like this one should (esp. if they build a mini size for stealth). I couldn't be more pleased with the notion of very few parts to malfunction and nothing to really throw away (aside from batteries), for many years to come. That was what attracted me to the T1 line, the fact it was built to last, little could go wrong with it, and you can replace the battery. I am actually a bit surprised at the sudden about face with the T1 line since I had not even had mine a full year, but very happy with the resulting turn around, in how they are now building these vapes.