My wife and I have owned/driven our 2019 Premier for about two weeks. Really enjoying the car (we have five, including the Bolt, as we live in two states ~"snowbirds"). Much prefer driving the Bolt to any of the other vehicles we have (in MA, at the moment; Jeep Wrangler Sahara, RAV4, and the Bolt. The RAV is "on the way out").
I'd rate the Bolt at around an 8.5. I can't get my smartphone (Android 8.0) to connect up to the Bolt for Android Auto. The lane change warning/assist is very weak.
The seat is no issue, for either my wife or myself, and I'm a big guy. Apparently a very subjective matter!
Looking at the rationally prices EVs out there now, even including what I might consider the unicorns of EVs (from the other KIA and Hyundai offerings, which don't seem to be available in any real numbers), I'd still pick the Bolt as the sweet-spot of the current EV crop.
Decent interior space, mostly well thought out controls, and it has a cooling and heating system for battery temperature management (a requirement for EVs I consider mandatory). I also like how the car looks (again, beauty being in the eye of the beholder).
Rich