We stayed here for one night in September 2008 as the half way point of our drive from San Francisco to Los Angeles.
Not sure - great location for us as a mid-way point, but seemed a little way out of town. This wasn't a problem for us because we were staying for one night and the purpose of our stay was to see the quirky hotel!
The hotel is very quirky and over the top. For some this may be a problem but our friends recommended staying here simply because of this, and we enjoyed it too.
The restaurant is very over the top, pink leather booths and lots of ornamental decoration, chandeliers etc. Food was very good and fulfilling - don't make the mistake we did and order starters and a main if you also agree to having the bread and salad. My girlfriend had filet mignon - the steak was perfect! Prices were reasonable too.
We stayed in the "love nest" which had a cupola, large bed, a sofa and armchairs. The rooms was a little tired, but very spacious and comfortable, and quiet.
The spa was being opened a few days after our visit, so I can't comment on it.
I'd recommend staying here simply for fun - you can't take it too seriously; some of the rooms have waterfall showers and are designed to look like caves. We plan to go back this summer, this time in a different room. If you do stay for more than one night, it's probably worth seeing if you can have a different room, simply because they're all so different.