Still waiting on it to die on me again. I'm loving the fact I can go a full 24 hours on the battery (with my semi light usage) without a problem. It does EXTREMELY well while in standby. Which is going to be awesome when school starts.
Once the kernel source comes out, we will have several kick-ass kernels to choose from, hopefully with SmartassV2 for a governor (the best one IMHO..) which will just increase the battery life even more.
So... even with one charge cycle down, I'd consider this a MUST have. If you don't mind the huge battery that has double the capacity, that's the way to go. Otherwise, if you want a some extra juice outta your stock casing, or you must have the Otterbox, then this is the way to go. For less than 20 bucks for one, or 2 w/ a charger for 30, I'd say it is worth every penny.