(Just as an observation......The thread title "Santa Rosa, CA.???" would be better responded to as "Tell me about the city of Santa Rosa, CA".
Just IMO)
It was a smaller artsy wealthy cloistered liberal town a decade ago, and still may be.
(-)Even waterfront, nice resteraunts, and wine valley can get boring after a while. The GG bridge and 101 traffic might become a huge detriment to your lifestyle if The Peninsula is on the daily commute list.
(+)Close-r to everything in the Bay Area than LA, and nature areas are close and abundant. You will be purchasing many many tires and brake pads