Sunrun is the worst.

SunPower is who I went went, they were installed by Earthlight Technologies and it was fantastic and painless.

I went with a lease because the monthly cost of the lease was almost $20k over 20 years less than an owned system purchased outright. I would definitely get multiple quotes and have them quote you both leased and owned. I also liked SunPower's system buyout clause, which is set to market rate determined by an independent assessor (according to their contract). Their panels are among the best, side-by-side with Samsung.

My price went up by ~$10/mo over 2 months since I let my initial quote expire. Regret that over the 20 years. Still should save at least $250/mo over Eversource. Should be a good time to get on the list with the lowest waiting times. June-Sept is the worst time to sign up with install times in the 4-6 month range. I signed in Sept and had my install end of Jan.