Well, they work
First and foremost, these things deliver on their promise to make your teeth "noticeably whiter" in two weeks.  I'm not going to complain about that.<br /><br />However, I have noticed the following things:<br /><br />-These things are insanely hard to get into your mouth the first few times.  It's a shame there's no "spare" strips included, because you're likely to waste a couple.  The lower strips especially are prone to getting crumpled up and ruined while trying to stick the damn thing to your teeth.<br /><br />-The gel tastes terrible.  I recommend brushing your teeth shortly after you remove them.<br /><br />-You can't really talk, drink, eat or do anything with your mouth while they're on your teeth- even swallowing is difficult at first.<br /><br />-The packaging does not stress that you need to use them TWICE A DAY.  I made the mistake of using them only once a day until I luckily saw the note on the package.<br /><br />But, like I said, my teeth look quite a bit better, although this isn't a substitute for brushing.
Rating: 3 stars