mikegospo, each of the companies you mention are quite reputable. Each person had a personal preference of bed supplier. I don't think you will go wrong with either of these. You are doing the RIGHT thing to ask BEFORE you buy. Others have made their purchase and asked 'after the fact' about how they did.
Personally, I have Sundash, Tanses, SunSource, and Suncapsule
equipment. I also have a Dr. Kern but I wouldn't make that purchase again. Its been TROUBLE.