It's definitely an interesting feeling and when you order it they send a complimentary bottle of there cum lube, but the draw back is if you use it a lot then you'll go through alot of there lube. But it does offer a full hole and a very slimy mess for cleanup
I have a few of them with cum tubes. I love using mine, they help with getting lube deeper. Cleaning isnt too bad, it can be annoying sometimes but If you're into that sort of thing I'd recommend.