Bought this over a year ago and it has been working great until recently. I agree with other reviews, the head is a bit smaller, but that's not critical. What I'm saying is that accessing this aftermarket product is 1000 times easier when it comes time to clean the brush inside the unit. You don't have to search for a coin to open it, and you don't have to fiddle with multiple pieces. You can just slide it, pull out the rod, clean and wipe the inside. So $26 is totally worth it even if it only lasts 15 months.