So I am a lover of the old Billet Box and AIO devices like it. I just picked up this Hotcig R-Mini and I must say that im really impressed!! The only negatives so far are it's a heavy little sucker and there is no rebuildables deck (yet). This is not the device for the cloud chuckers that run through 50ml a day and I was a bit concerned with it only having a 2ml tank but the 1.2ohm coils only have me filling the tank twice a day. Also with airflow control inside the box you can go from MTL to DL with a slide of the switch. So far im really impressed!!