Planet Hollywood's pools leave a lot to be desired. There are very few lounge chairs on the actual pool decks. The rest are on a concrete slab where you can't even see the pools. You can rent chairs, cabanas and daybeds and then it would be reserved. It's a party atmosphere so be prepared for loud music.
No outside food/drinks permitted in the pool area. Bags are checked when you enter but they did let in Starbucks and bottled water. They do have a cafe and bar. We planned to hang at the pool and eat lunch there. I walked into the cafe and literally said "this is it?". It's comparable to a bowling alley snack bar. We needed food so we ordered a personal pizza and chicken fingers. The chicken was so soggy I couldn't take more than one bite. Pizza was okay. There was only one bar top table but it looked like it hadn't been cleaned all year. We had to take our food out to the chairs in 105 degree sun.
There were girls running drinks. The first day no one asked us if we wanted anything so I assumed they only catered to the cabanas. We did have someone check on us another day, so I'm not sure why that wasn't always available.