Summary: I've had the same issues that everyone else has been describing: seal broke, water under the lease, poor quality, rubber buttons falling off, and memory card errors. However, the memory card errors are the most frustrating. When snorkeling, you can carefully open the camera and pop the memory card out and in and the camera will take pics - when you're 60' down you can exactly do that and miss pictures from the whole dive.
Stay away from this camera. I'm being nice calling it a camera. I wanted to call it a piece of something else.
17 August 2014
Summary: My second SeaLife Mini II in a row - and equally disappointing. The video was choppy and the battery life absolutely horrible - maybe 2 minutes. I was on the best dive ever in Cabo - face to face with a curious sea lion and couldn't get a shot. I had earlier loaded a fresh set of batteries. My camera had been off until that moment - and when I raised it as the sea lion put his face into mine, the battery was already dead.
Summary: There are so many things wrong with this camera, I am not even sure where to start... The camera leaks! Hemorrhages actually. The LCD display is too dim to see anything in daylight. The camera uses too much battery power - only good for 30 pictures (non-consecutive). The shutter speed is so slow that you miss every picture that is not a still. This is barely a 6MP camera - nothing more. Camera turns off over half the time when you snap a photo.
Summary: So, for the price, this really gave very surprisingly good images. For amateur snorkelers this is just perfect. It really is best within 6 feet of the surface, and the flash isn't much to speak of. The only important thing to know is to rinse it with clear water after every time you dive, otherwise the buttons will gum up with salt water. Stayed water-tight for 20+ dives, a nice item for an inexpensive price.
Summary: I too have had problems over the years with the Sea Live Mini. They include flooding, weird battery draining and unpredictable behavior. Sometimes re-seating the batteries helps (which you can't do once in the water, of course). I can say that the company or my dive shop has replaced the camera twice but that doesn't make things better.