I really like living in California.
Pros:
It has nearly every terrain and climate possible: grass valleys, snowy mountains, beaches, large lakes, deserts, etc. Road trips are really fun and the state parks are all amazing.
I also really enjoy the cities. Los Angeles and San Francisco have tons of international influence which makes their food, music, and overall culture very diverse. Each time I'm there I hear different languages being spoken and will experience something new.
Last, I like the social outlook that California has. It's more progressive than most other states and tends to evolve faster.
Cons:
Sales taxes are pretty high, especially in the city. Sometimes it can be up to 13 percent! General living expenses can also be costly.