At the mall, in the parking lot. The light isn't 100% wonderful in there, so tough to see everything like paint, etc., but the team there is incredibly helpful and is already good about making sure we get our due bill items checked, whether found out during the delivery process or after. As I understand, there's a third-party service center ~20 minutes away from the mall where any work would be done.
Delivery was easy - we were one of the first deliveries, so some of it was trial-by-fire, but given everything, it was understandable. Overview was as detailed as could be, and we together noted a few items that needed fixing. Setup was fine, though we (like others) have some issues fully setting things up (can't pair keycards to a profile, can't create a second profile, some random warning lights, some mechanical issues we knew about pre-delivery and they are going to fix as soon as they can, some minor paint issues, etc.). It's all part of being an early adopter, but most importantly the car drives beautifully, looks great in person and certainly has attracted the attention of others who haven't seen the car live.
I do have faith (at least with respect to the Denver studio) that the right teams are in place. They are very good there and are invested in seeing their customers happy and the brand and cars do well.