The best at what it does Rated 5 out of 5 stars
At first, I was hesitating to use lastpas. I mean, send my passwords online??? What an idea. Then, I checked the way they're doing it, lots of reviews and documented myself on encryption. Also, I said to myslef "we're in 2009, in a couple of years, this kind of Internet based service will be everywhere, these guys are just a bit ahead of the curve".
So, I gave it a try (I was using sxipper before, a good product, but too present on the screen). I didn't experience even one glitch. My only problems came from old and outdated passwords I had... Very easy to solve with the "repair" feature.
Overall, a great product. And for guys worring about security : most banks and online backup services use 128 or 168 bits encryption, lastpass uses 256 bits... They're ahead, and my guess is that they intend to keep it that way.
Realize that you're using the Web, and you're going to use it better!