An awesome pool to hang out at! Lazy river, lagoon, wave pool, hot tub and lots of seating available without having to get there right at opening. We arrived at 8, 10 and 3:30 with no issues getting seats any day we were there. Cabanas and daybeds are one of the best deals on the strip as your reservation is a food and beverage minimum. With a small group for s full day you'll have no problem hitting the cost.
If your not in reserved seating, make sure you visit Marck in the bar. He is the best bartender at Monte Carlo! Very personable and so upbeat!
I will say there were more kids than we've seen at other pools so be cautious if that bothers you. Overall I hope that the renovations starting in October don't change too much and they keep the reserved seating program and pricing similar to what it is today!