Got it today. Some initial thoughts.
Pairing with the app went perfectly. I just plugged it in to the charger, opened the app, clicked the plus sign and followed the steps. Then I set it to street mode, which was equally uneventful. After I fully charged it, I removed it from the charger, and fully closed the app. I then activated it by closing the chest connector, opened the app and it connected again without issue. It had the more current firmware already installed.
The connector to un-hook the battery is super small. I wish they made it bigger and more of a automotive weather pack style connector. As-is, it's a super small 4-pin. Not a deal breaker.
It's heavier than I was expecting, but once you put it on you don't notice the weight at all.
I put it on over a short sleeve t-shirt and the sleeves of my t-shirt got bunched up under the airbag sleeves. I expect it's really meant for some type of base layer, which was expected.
I wear a XL or a 56 in Alpinestars, and ordered the XL 7X. Fit was as expected. It's longer than my KR-R cell back protector with significantly more coverage at the bottom in width, and since the air bag is down that far as well, it's much more protection.
You can separate it from the airbag and the electronics so you can clean the liner, which is awesome. I don't like my stuff smelling like used hockey equipment.
Orange cat approves of the box.
The blue part is an air fitting to fill the airbag in the event you replace a cylinder or need to otherwise inspect it. I'm not 100% sure, but I think it fits where one of the cylinders attaches. The manual is useful and has a lot of information...surprisingly. It's not one page of super basic info then 50 pages of regulatory dribble. USB-C to charge, and the port is on the base of the chest connector with the LEDs. Much improved over having it on the back.