Sphag has a bad rep becuz I think it's not understood. Old tired sphagmoss will stay very wet for a long period of time. If this is the case then it's simply broken down and time to renew it. Bark will turn into a soil like soggy mixture. So any media can have it's down falls.
I grow my catts in
chopped sphagmoss with add large perlite (coarse sponge rok) grown in clay. This mix does stay moist for a few days ... After that it's like any other mix, it dries out completely.
For repotting, or renewing media -- If you use the above mixture and it's time to repot - this mixture will actually fall out, this makes repotting very easy without the damage of root breakage.
I'm not trying to talk anyone into using sphag, I'm just saying
not to be affraid of using this media, just keep it fresh and airy.
Cheryl, I would think living in Florida sphag would be a great choice