I've used it to no ill effects, but it's only what I use for really messy situations (like soft poops that get smeared everywhere or something). I used it more often before I got into baby wipes and honestly haven't missed it for the day-to-day.
Best thing to use is baby wipes. I have to use Huggies, because a surprising number of 'sensitive' baby wipes are chock-full of chamomile (and, uh, a lot of people are allergic to chamomile!). I kept wondering why my fingers and skin would hurt after cleaning the cage... finally *read* the 'sensitive baby wipes' label and realized... not so sensitive!