No check in till 4 but you are able to make use the facilities before hand, however a locker is up to $20 for the day, it feels excessive. Paying for parking at $15 feels like another money grab. Check in is an endless sales pitch, and takes way too long.
The slides in the water park are fun, without doubt, but poorly signed, changing facilities were clean but again poorly signed. Only 3 elevators which have a constant queue, we ended up using the stairs mostly up to the 6th floor.
Our room was large and clean, the bathroom needs some updates the faucets on the bath and shower head were both coming off the wall.
Overall, we had a nice relaxing time in the water park, ate off site as the food was overpriced, but wouldn’t return.
I should also say I think if you have kids a little younger (3-10) you would have a better experience ours at 10-15 were slightly past the target audience.