Not an owner, but I am someone who has taken interest in the brand, and am curious to see where they go. I think Rivian will survive while Lucid struggles, they were smart to enter the market with an SUV and a Truck, the two most popular vehicles. Whether I'm in MD or FL, I see them everywhere.
I checked an R1S out in person as I had been excited to drive one, and liked the idea of the future R2S SUV to eventually replace our GV70. I was somewhat disappointed though after driving it just down the street. The regenerative brakes are far too strong, and that is in the comfort and sport setting. This thing practically forces you to learn/use one-pedal driving, which is of no interest to me. I find it so strong that it was honestly nauseating. Complete deal breaker for me. I've only driven other EV's like the EQS, i4, and E-Tron on occasions, but I've never found the brakes in those cars to be an issue for me.
Otherwise, the rest of the car is very charming. Styling is love it or hate it, I like it a lot, especially the color options inside and out. Tech is Tesla copycat, but it works very well. Some nitpicks, seats are too firm and not plush for me, and the steering wheel leatherette feels like cheap vinyl in an economy car. No glaring quality issues on the car I looked at.
Hopefully with some software updates or changes over the years they can fix the issues I have with it.
