We have stayed here many times (although the last time was in 08, so I don't have anything more recent). We like it. In particular, we like the price, the proximity to the parks, and that there is a Starbucks in the lobby.
Other things we like are:
great beds with feather blankets (they also have sleepnumber beds)
BIG in-room safe with a code you set up for yourself
free fridge in the room
nice pools/jacuzzis
sometimes you can get free breakfast buffet
We spend very little time in the room, and we don't have kids, so spending a lot on a room is not something we are willing to do. This hotel has always served its purpose for us. Mostly we liked the price and the comfortable bed so we got a good night's sleep.
Now though, we have found a townhome which is even less expensive, and we will bring/make our own coffee, so we are opting for the townhome. But we would go back to Radisson Celebration again if the price was right (or if the beds in the townhome turn out to be uncomfortable).
The one thing I DON'T like about it is the extra fee they charge per night. Ridiculous. They should just add it to the regular room rate and be done with it. Be sure and check for their internet specials, or call reservations and ask for specials. I keep getting 30% off deals sent to my email.