We stayed here with 3 couples and 5 kids ages 4-10. Everything was great! There are a lot of stairs, but we appreciated the exercise. The elevator was super convenient, but we didn't use it much. We really only had to use it when the couple staying in the first floor bedroom went to bed. To get to the first floor by stairs, you have to go through the bedroom on the first floor.
I texted maintenance on the first day because the pool heater remote battery was almost dead. They were there within the hour. I was really impressed with the prompt response.
The beds were the most comfortable beds I've slept in on a vacation. We were delighted to see beach chairs, sand toys and even a life jacket for my little one. The pool and hot tub heated up in no time. The beach access is right across the street, and we had no trouble crossing the street (I was afraid it would be a really busy crossing, but it was no issue.) There was even a wagon for us to haul all the beach toys. My kids couldn't stop commenting on how soft the sand was. It was beautiful.
I would definitely recommend this house and Warren Beach Rentals. I'm already browsing their other properties for our next trip.