Has anyone had a good or bad experience with Flobeds, or FoamSweetFoam?
Both of these manufacturers make high quality mattresses and are great to deal with. I think that you will find though that the value at Foam Sweet Foam may be better.
I would also consider some of the online manufacturers listed in post #21 here which also make very high quality mattresses and may give you some better options yet (depending on the pricing and features that are important to you).
A forum search on flobeds will bring up lots more information about them and some comparisons with other choices and a search on foam sweet foam will bring up more about them as well (you can just click both links).