It is water-based, so using it in the bath or shower may rinse it away. I've used it mostly for wetting the vagina and clit, but while it's not specifically meant for anal, I've had no problems using it that way.

It's slippery and pleasantly wet. It does leave a residue, but it's a nice, velvety feeling, not sticky or unpleasant. Residue left on my toys; when it dries it looks white and flaky. It's probably best not to leave it on, but I don't think it'll be harmful to your toys in any way.

It has no scent or taste, and while the label on the bottle makes it quite clear what it is, it's not flashy or ostentatious.

Despite being a water-based lube, it lasts and doesn't dry out quickly. A little bit goes a long way. It's easy to rinse off with plain water or wipe off with a toy cleaner. The texture is nice and feels better than natural.

It wasn't contained in a bag, which made me a little nervous. It was shipped in a box with other items, and if it had spilled, it may have ruined something.

I find it so efficient that I have to be careful not to use too much, or it'll become so slippery I can't hold onto my toys.