To be honest thought it was a gimmick, nothing could be that great but believe me it is, it's fabulous, after my shower a 2 minute wipe down and it doesn't even look like ive used the shower, all sparkly clean and I mean sparkly clean, no water marks or streaks, nothing. I use one in my kitchen too, my cooker, fridge/freezer doors, I have some metal units and they come up brilliant, I couldn't recommend highly enough.