I've done 8 cans with them now and it's been great. Same process pretty much but they have their own portal so you can link your eForms and upload your own photos and EFF you don't need to use a Kiosk.
They facilitate transfers to them from other dealers and private parties, handle paper forms, and hqve pretty good stock as well. Certification is easy, all done via DocuSign and calling into the service for screen sharing, they always get back ready to certify within 24 hours
After that they'll handle the 4473 and CLEO notifications as well same way, adds an extra 2-3 weeks depending how many cans gotta move around but the nice thing during the CLEO hold they'll send the cans to your state so I get it within 2 days when it's ready.
They always stick copies of the forms and a ton of swag in the box, I've gotten coozies, shirts, and silicon suppressor gloves and what not. Really good experience they're quick, keep you informed and they've never fucked a form up so that's good in my book lol