I use this in the bathroom of my third-floor walk-up apartment.  I've had it attached to both the bathroom sink and the shower (preferred). You'll want to watch out for leaks in the attachment points for the inlet as well as the outlet. My outlet hose got several holes in it a few months after use, but it wasn't too complicated to replace with a better-quality hose. I also ended up replacing the inlet hose as the one that comes with the unit wasn't long enough to attach to my shower. I recommend putting it on an appliance stand, as it will allow you to make adjustments for a quieter run, as well as give you the ability to catch possible leaks quicker. Overall it's a good investment.