CORE 2!
I have a bunch of ways and devices to consume concentrates. If I could only have one, I’d choose the inexpensive Core 2, not the 2.1, as I like the ability to use the rebuildable atomizers. As all the parts are cheap enough, I always bought them, but I have yet to replace the original one. Granted, I swab immediately after a session, and often remove the atomizer, to clean the reclaim build up underneath, and do a few burn off cycles on a separate ECig mod, using the CUB adapter. My glazed white ceramic bowl looks new, NO chasing. This device doesn’t need a thermocouple, in my opinion. There are 4 temp presets, that can all boil the concentrates, and you can easily look into the bowl to see when you want to cap and hit it, or you can wait for the device vibration.
There are certainly many devices in this category, but few at this price point that deliver consistent hits.
My suggestion for newbies in this area, buy the least expensive option, before spending far more….
Good luck on your hunt!