we have these on a few older equipment at work, as said they work fine and never seen one leak. but honestly they are only on the equipment you can't get a pan under or on a lift. so they all have a hose that run to a drain area. very useful but not something I'd put on my own car. after years of maintenance jobs, a few drops of oil here and there I don't even think about haha.
we do pop a hole in the bottom of a few of the filters thou, these are big like 3qt filters and they gotta turn side ways to get around stuff. so that's worth doing forsure on the filter.