Okay, so I'm reporting back after using my Aspire for a few days. I haven't open the pyrex one yet. This is the plastic ET. I enjoyed it fine at first. At first I thought it created more vapor. Now I don't really think it makes a lot more vapor, maybe just a little more. Anyway, last night mine stopped working, like the coil was dead, or contact with the battery was not made. I took it off the battery and tried to unscrew the base. It wouldn't come off. I had to find my pliers to get it off. Then, I don't know why, I decided to put the base back on and put it aside. I went back to vaping on a different clearo, and a little while later my battery started flashing, wanting to be recharged. I put the same Aspire back on a freshly recharged battery, and the draw was back. It vaped, but was leaking all over my battery. It dripped on my couch, and was spitting juice into my mouth. Geez, new stuff. I don't mind having spent 6.95 to try the clearo. I just wish I hadn't bought two 5-packs of replacement coils, because my T3's are looking better and better now.