I just posted my thoughts: http://symbianguru.typepad.com/welcome/2007/05/n95_reflections.html
After a few weeks, I don't think the battery is the dealbreaker. It's nothing compared to the N73, that's for sure, but when you realize all that you can do with it, I'd say it's right on part.
Think like a car. If you're shopping for miles per gallon, you might compare a Prius with a GMC Sierra. The prius is going to get ALOT better mileage, but you also can't do the same work you can with the truck. You can't tow anything, or load it up with a bunch of cargo, or go off-road. Same with the N95. Sure it gets less mileage on the battery, but when you consider all that you can do with it, it's a sacrifice.
I don't think the battery is unusable at all.