Like many, I loved the idea of having direct to USB charging without having an extra device hanging off of an outlet. I've been using this for about six months, and I can safely say that it fits the bill. However, you need to bear two things in mind:
1) This outlet is quite a bit bigger than a regular outlet. The electronics to transform the voltage and the actual USB receptables are essentially bolted on to a regular outlet. This means that you need to be sure that your outlet box has plenty of space. I ended up having to buy a replacement gang box. This is more involved than simply replacing an outlet, so make sure you do your measurements and are prepared to do this work or get someone to do it for you
2) The power to each of the outlets is not independent. What I mean by that is that if you have two devices plugged in for charging, the power to each one is less than if just one is plugged in. This means that your devices will charge more slowly when two are plugged in vs. one. This is not an issue if you just need immediate power, but if you are trying to charge something as quickly as possible, make sure it's the only thing plugged in. Note that this does NOT mean that you won't be getting adequate voltage when two items are plugged in, just that they will charge more slowly.
Overall, I think this is a great addition to a modern household and I definitely recommend it. I gave it only four stars because of the complexity that can come with installation, but it functions flawlessly.