I really like the Monte Carlo. It's a great mid range hotel that offers a good hotel room and cool pool area for a decent price. It's no five star hotel by any means but it's definitely well maintained, clean and offers all all the amenities that you need.
The hotel room and casino floor is pretty standard. Has everything you need but nothing fancy. It's also centrally located to all the other major hotels so it's walking distance if you don't want to deal with driving or cabbing it.
My favorite part of this hotel is the pool area. It has several pools and a lazy river that you can lounge around all day. However, in full disclosure, the clientele tends to be a little on the trashier side so expect plenty of drinking, swearing and cursing. But other than that, if you're not looking to spend a pretty penny on a Vegas hotel, then the Monte Carlo is definitely worth the say (for the price).