I went with Clean Solar in San Jose. All companies I got quotes from were very similar; I wanted to go with a small/local company, but the smallest company I talked with turned out to be shady/on the verge of criminal, and for me, Clean Solar struck the right balance of being local and big enough to have tons of great reviews and presumably good financial resources, but not huge. The SunRun guy I talked to was also great but I just didn't get the greatest feel in the end.

In my particular case, I got SunPower panels, but (like most installers), you can get whatever you want. I went back and forth and was on the verge of going with 360w LG NeON panels but then a deal came up on SunPower 345s that were substantially cheaper per watt, getting close to non-premium brands (of course with that slight wattage discount; I suspect they're older panels being phased out in favor of new 360s as the top end). I had liked the idea of using SunPower but the 360s were even more expensive than the already-premium LG 360s, and the 345s at a substantial discount were just the ticket.

Feel free to ping me if you like, I was super happy with my sales guy who was far more patient with me and spent far more time on the phone with me than I think most people would, and the install was done in one day, they arrived early and finished early, and left the place spotless. Can't say it wouldn't have been the same case with anyone else, but I was still impressed.

It's pretty cool how they do the quoting and measurements; get up on your roof and use specialized cameras to 'view' the sky from all corners, find obstructions, calculate sun angles, etc. They gave me an estimate of per-month production that's been amazingly accurate. (the guaranteed production is on a per-year basis with production declining at a certain annual %)