This is really a problem of losing Radisson properties, I've personally stayed at Radisson Deauville Miami Beach, Radisson Boca Bridge, Radisson Boca Suites, and all have left the chain. Of course the Deauville wasn't great and looks like it hasn't been updated since I was there in 2002, but the two Boca properties were nice. It was frustrating when I went back to FL in 2005 and discovered all the convenient properties from the previous trip were gone (relatives in FLL area so it was nice to get away to Boca or Miami Beach for a few days at a time).
There's a thread here somewhere that tracks the property closures. The idea was apparently to weed out the properties that weren't keeping up, and move the brand up-scale, which I was looking forward to, but the Regent South Beach suggests it's not a great success.
=aw