First chamber I got with the purchase of the puffco plus was great, afterwards, the replacement chamber's functionality just wasn't the same in terms of having the proper experience while consuming expensive & high quality concentrate. I noticed both replacement chambers drained my concentrates way faster than the original chamber that came with the dab pen. At first I thought it was normal. Then I soon realized that big dabs would still give me just enough for one decent hit and then it was gone. The ceramic atomizer may have a bowl-like structure, but actually it has ceramic plate at the bottom (that heats up your wax) that is completely separated from the ceramic walls. This caused the wax I vaped to slip through in between the ceramic plate and the ceramic walls and eventually build up inside your chameb. I would blow from the bottom of the chamber out after cleaning it and wax still spewed out from in between the plate and the chamber. I think Puffco should consider a bucket like design. It would probably work best, making the ceramic plate and the walls into one piece, together as one!. This would make the device way easier to clean, give the chamber more durability, and most importantly save medical consumers money when you don't waste your precious concentrate into the insides of your puffco plus chamber. I actually have some perfect design ideas.