I LOVE this thing. My dental hygienists have been telling me due to some ongoing periodontal disease I've been battling, that I REALLY need to start using my Waterpik. I've had it for YEARS, but it always just sat around, because it was too inconvenient to use. First, you have to pay $60+ for the Waterpik device. Then, you have to find a place to plug it in, where there's counter space to sit it. Then, you have to fill it up with water, and do that multiple times, if you want to have a longer "session" with it. THEN, you have to try REALLY hard to not make a mess with water everywhere, and when you inevitably DO, you have to clean it up! With this H2Oral Irrigator device, NONE of those things are problems anymore! It's seriously simple to install--it takes about 5 minutes or less. The only catch is that, in my case, I had to replace my shower head, because the one I had didn't fit, but I think most normal, modern shower heads will. Once it's installed, you simply take a shower, and when it's time to turn on the irrigator, you just twist the "knob" to turn it on, and adjust the pressure. Unlike with the Waterpiks, you have unlimited warm water! And you're in the shower, so when water sprays out of your mouth, it's not an issue. When you're done, simply twist it again to turn it off, and hang it up! It's sooo easy, and works great! The only "edge" the Waterpik has is the pulsating, which can feel a little like a gum massage, and is nice. The H2Oral Irrigator just puts out a steady stream, but I suspect it still does the trick, just the same. I suppose I'll find out at my next check-up in a few months! :) Oh, and it's one of the few things you can buy on Amazon these days that's made in the USA, which is also a huge plus, in my book!Oh, one small issue--the adhesive backing on my wall hanger didn't work. The waxy backing just wouldn't come off, so I ended up ruining the adhesive backing. I emailed the vendor about that, and never heard back, so THAT was a little disappointing. Otherwise, this thing is perfect! Affordable, convenient, and effective! Ahluvvit!