I have a Gekko (sp?) Hard surface tool with interchangeable heads, one of the heads resembles a wand head but it's made for tile. Being interchangeable, about 6" up the vac tube behind the head is a swivel. It's nice for getting around obstacles for sure, especially around toilets in confined spaces. I like it.
What I dont like is the swivel joint itself is clunky, archaic, and leaks vacuum.