I kinda disagree. I just stopped by the DLH with my 6 year old daughter and 5 year old son. The main pools shallow end was 4 foot deep and a bit too deep for my kids who aren't strong swimmers. The slide area had a kiddie slide that was too tame and the next slide up emptied into a pool of 3.5 deep, which was again too deep for my son to land in on his back. Additionally, the pools were not heated, they were freezing, even for 3 overly hot visitors to a SoCal summer.
One slide was not working, but my kids also didn't enjoy the pouring water from the slides as it was so cold.
My kids asked to never come back.
Sadly I have yet to stay at GC but cast members said it was rather tame, so I assume it's great for kids who are not strong swimmers.