Delfina is a nice hotel, way better than the old name "Sheraton" Delfina would imply, which is probably why they changed it.
It's a totally different vibe then W@Hollywood or Andaz though.
Going to Hollywood Bowl from LeMeridien Delfina is a little more complicated. Taxi will be very expensive so you have to make your way to Westwood Federal Building and take the Hollywood Bowl shuttle:
http://www.hollywoodbowl.com/perform.../park-and-ride
BTW, the Hollywood Bowl shuttle is how the locals get to the Bowl... there are only about 1,000 parking space on-site so driving there is really not recommended.