The pool at Harrahs is okay; much more relaxed than some of the other pools I've been to in Vegas. It is a family pool, however, when we were there I think I saw maybe 3 kids under 18. Mostly it's a relaxed pool for adults with some top40 music playing in the background. I think the lack of kids is because it's probably not much fun for them; much better pool options for kids at other hotels like the Flamingo. They have 2 pools; one regular pool that is pretty large and one play pool that's about a foot deep for sitting in (I think it's meant for kids but again, no fun for them).
They do have a bar to order drinks and you can order food from the Toby Keith's restaurant. They also do have a couple waitresses taking orders. They have a sign on the door for no outside food or drinks. I had a coffee with me and they didn't seem to have a problem with that; my husband had his drink from the bar in a plastic cup and they didn't question him either; don't expect to roll in with your own cooler though.
They have several lounges; we didn't have a problem getting one for us to share. You can also rent day beds and cabanas for a fee; prices ranged from $25 and up. If you are a diamond member I think they will hook you up in a reserved section with a lounger too.
So overall; nice and clean and good place to chill and get some sun. If you want a more lively experience I'd suggest the adult pool at Flamingo.