I did the Western Wonders holiday a while ago. It is full on (as all these tours are) because you are covering huge distances. Not much time to relax, but you get to see a lot, which is the idea. I understand from people who have travelled to the USA recently that the cost of living is currently eye-watering, and the poor rate of exchange doesn't help! As this tour does not include any meals, or only breakfast, you would need to factor in a lot of spending money. But California is fantastic, I have been twice now.