I have the I30B and really like it. But sadly, it is plastic so I keep my cinnamon out of it. The PT3 is, IMO a real pile of s---. I am popping coils constantly. The PT2 on the other hand, is a trooper.
For BDC Glassos I like my Aspire ViviNova glasso. The plastic drip tip is cheesy feeling, but the Aspire glasso is $10 I can afford to buy a better tip for it and still come out spending less than the I30B or the PT3. Right now it is my favorite BDC tank. It has better flavor and vapor production than my I30B.
Aspire BDC Large tank
I have some highbrow cinnamon in it and am hitting it as we speak. I have another ordered and an Aspire Davide BDC from my local B&M.