Got my thermocore, condensor, and XL tube cap in today. I haven't tried the thermocore yet (about to!) but I've been using my old oven for 2 years now, that I forgot how shiny the new ovens were! It's an Anvil oven, so I'm sure it performs just as well as my original does.
The thing that I'm not digging is the XL tube cap. I was going to leave an oven on my WPA and one on my stem. I've always put the stock mouthpiece back on the stem for the tube because I didn't have the cap. Well, now I can leave the XL mouthpiece on when I travel with the tube, except the experience with the XL cap kinda sucks.
The magnet in the lid grabs the oven/bowl just fine and lowers down into the tube and tightens/closes. Opening it though and removing the Anvil is another story. The bowl comes unscrewed from the oven and stays stuck in the lid EVERY TIME so far. This means you have to screw the bowl back into the Anvil then pull it off of the magnet, but you have to pull so hard it pulls the oven off of the stem. It works to house and move it all I suppose, but not excited about having to reassemble and carefully remove everything every time I open it. I could just grab the old configuration out much easier. I was looking forward to being able to carry it in the XL configuration, and I can, it just takes some tooling everytime I'll want it, and it may be hot, which won't help.
EDIT: The Anvil has been my go to for the past 2 years or so and I figured I'd get another oven for the convenience of stem and WPA without swapping the ovens back and forth, but the thermocore really is impressive. It stays hot so much longer, I'm impressed.