Japanese people don't use the bed on the floor style anymore. Just spent the last 46 days in Japan, slept at 3 different people's homes, each with beds in multiple rooms, and not once did I see that type of bed. Not even in the hotels either. If you are travelling in Kyoto and are looking for extremely cheap over-night accomodations, you can experience that type of sleep, but it is very unusual.
As for my preference, I like a bed on the floor, for it provides sturdiness and safety. As long as the sp has a good personality, is clean and has room inside for me, I am a go. By the way, bella, where are your photos? Please provide a link. Oh, almost forgot. I did check out the action for sps in Japan, and like elsewhere, the quality and prices are terrible. I hate Canada for many reasons, but one thing I have to acknowledge is the fact that we have the best adult industry options around.