Summary: This phone is decent, but that's about the extent of it. When I purchased it, it had a mediocre processor and screen, and was missing a couple of features that are pretty standard (notification LED and automatic brightness sensor are the ones that leap to mind). But the big draw was that it was waterproof and could handle being fumbled without completely destroying itself. I've dropped it once or twice, and had no problems.
Summary: It's not the fastest phone out there, but it's not annoyingly slow. The internal storage is limited, but there's a uSD slot. The screen is bright and clear even if it's not the super high res other phones have these days. And it's not that expensive. No phone is impossible to break, or drop someplace it wouldn't be safe to retrieve. That's what makes the low price an important durability feature, I can take this places I wouldn't take an iPhone in an otterbox case.
Summary: bought it for my son, who is 12, thinking that a sturdy phone would be better. Only disadvantage is its small memory, but it has a great screen, good speaker. Haven't tested the waterproof claim, I'd rather not. One month going and 100% happy with it.
Summary: I really enjoy the smartphone. The only thing I don't like about it is a tiny internal storage. You get only 1 GB for your applications and data. Of course you can extend that by inserting a sd-card. But unfortunately you cannot install your app on it, unless you root your device. The battery life is even better then I expected. Normally I charge it not often then every other day. Overall it's pretty good rigid smartphone.