I recently purchased a set of AW13 20" wheels for my Rivian R1S. The order process was great: I knew I was pre-ordering a set of wheels slated to arrive in a few months, and it actually ended up getting to me a few weeks earlier than expected.
I had also ordered a set of anti-theft burned titanium lug nuts to guarantee fit, since Atomic Wheel's set is a little narrower. They didn't quite match the photo as I had expected, meaning the ends weren't fully blue. I reached out to their service and they were more than happy to exchange for a new set with more complete coverage. Thereafter, there was another small mishap where the dedicated anti-theft installation socket wasn't included in the second package, so they also sent another follow-up to include that. This did end up impacting my timeline by a few weeks, but not something worth docking stars on (I'm in no rush, good stuff comes with time).
The wheels themselves are gorgeous and really fits the aesthetic I'm going for. They were installed with General Grabber HTS60 275/60 r20 tires which (bonus!) meant that nothing has to be changed from my OEM 21" settings, and I love that Atomic Wheels called this out in their item description as a recommendation. They don't look half bad either!