My Gen 3 is dead. It would say 70% and then die. So I ordered a new battery. That just made matters worse, it wouldn't even hold a charge. I bought an Opus - I really love it and...touch wood...it works beautifully. I also bought a Nook ST. The first Nook wouldn't hold a charge (it has to be me), but the new one they gave me in place works extremely well.
So, I have an Opus and a Nook, but I still wish my Gen 3 hadn't died.