IQ2 I bought the Ascend 6 years ago. What a great simple tool. Not complicated. Temp control, did what was needed. But, after 6 years of use, the temp controls couldn’t stay at temp and battery life was close to zero. So, it was time to buy another. The new IQ2 I bought last week is a technical challenge and to fu-fu for my liking. I’m not interested in Bluetooth connectivity. Which hasn’t been able to connect to my iPhone. I should not have bought this model and looked for one that gives me the basics. Quick heat, right temp range and an extendable mouth piece that is part of the vaporizer, not a separate piece that needs to be attached. Overworked, over thought. Sorry Davinci, I loved the Ascend and was hoping to replicate the wonderful experience I had with the IQ2. It does what’s required I won’t use the ‘add-ons’ at all as they aren’t of interest to me. Davinci, I may give this one away and buy the basic version. The build of the IQ2 is great. I haven’t had it long enough to comment on durability. I don’t think I’ll keep it long enough to post on durability.