The bathroom in our new home had no room on the walls for a permanent towel bar, and we didnt want to put anything over the doors. Definitely would recommend getting them if youre looking for stylish, regular use, summer shoes. However, after some additional research I discovered that, indeed the MBA38 and SP04 were compatible as long as you purchased a separate $10 adapter for it. I was amazed on how great it did cleaning my make up brushes. its a really stupid design oversight for people who would want to use it as a white noise device but cant do so out of the box. Knowing that, I sure wouldnt put a hot pot on them. Everything else came fine. I would bother with flashy name cross bars. Im a Vionic & Orthoheel wearer for years. For the price theyre a good option.