My wife and I, our daughter and her 7 and 10 year old children found it to be perfect for our needs. Lots of space, the Disney theme enthralled the kids, and it is located a short 10 minute expressway drive to all the sights we wanted to see over our 3 day stay. It was way better than a hotel, since we were in one apartment vs. hotel rooms.
As noted iin other reviews, the check in process is a little confusing, given the huge size of the building and finding our way around. However, IF you prepare by doing advance verification and follow the steps they give you, it will work out -- and once you do it the first time, it is pretty easy.
We are happy campers.
Oh, and if you are sightseers, we strongly recommend Meijer Gardens, the Ford Presidential Library, and the Grand Rapids Public Museum -- all wonderful.