We went on a weekday and it wasn't to overly crowded. I still wished a bit that I had put big florescent bows in the girls hair (I had 6 of them with me) just to make them easier spot. They weren't terribly hard to keep up with though, and I counted at least 6 lifeguards at all times. There weren't a lot of lounge chairs and I did see a couple people arguing over one but other then that most every one was very nice, so don't let a few bad apples spoil your fun. The lifeguards do well to make sure all the rules are kept and there aren't any real problems.
Children under 6 must be with in arms reach of an in pool adult with a swim suit on at all times and children under 10 must have someone on the pool deck that is 18 or older. They do have coast guard approved life jackets you can use for free and other then the full size water slides the deepest area in the pool is 3'6".
The prices are:
Age GwinnettResident* Non-GwinnettResident
3 – under $3 $6
4 – 10 $4 $8
11 – 49 $5 $10
50+ $3 $6
My advice is if you have a friend in Gwinnett County go with them.
Hours are:
Monday through Saturday 12pm - 6pm
Sunday 1pm - 6pm