Solage, while not cheap, is not as expensive as its sister properties Calistoga Ranch and AuBerge du Soleil (all of which will change this year when the properties are no longer joined at the hip)
I stayed there while enjoying myself at the fabulous and first class 2014 Napa Vally Wine Auction, my first time at this auction but certainly not my last. Solage has that total Calf cachet, a one story hotel with immaculate landscaping, first class staff and an "in-touch with nature" feel and setting.
The food was wonderful and by far the best hotel food I have ever experienced. Having two beach cruisers parked outside your room was icing on the cake for taking advantage of what we think of as southern Calf. weather. I liked the room layout and space combined with the private villa feel. My only negative was the children's pool, I don't have kids and appreciated the fact that the children were restricted to their own pool but if you had a drink at the adult pool bar you might as well have been sitting at their pool because every sounds was very audible.
Maybe several nights at Solage does not fit into everyone's budget but you should splurge for one or two if you travel to that area of the Calf wine country.