I bought 2 of the batteries as well as the Universal Motorola B-series battery charger - the batteries that I bought definitely last longer than the original I had, but both batteries showed signs of wear on them (the paper cover near the removal lip on the battery on both had been compressed and disfigured, whereas on my original battery it is perfect - and my original battery has seen more than its fair share of battery pulls as a result of OC testing after I rooted).
I thought about registering a complaint b/c the batteries were obviously not new, but in the end I decided that having 2 batteries with good charging capabilities and a third for just in case emergencies for the price that I got them at leaves me really no room to bitch about it.