If you can wait for the Nexus 4, I think it's worth it. I managed to get an 8gb Nexus 4 in the initial release and I've been loving it. The experience is extremely fast and lag free. 8gb of storage is kinda low, but I don't play games on it and I tend to rotate my music so space hasn't been a problem yet.
I personally haven't had any issues with battery life. I usually unplug around 7am and by the time I plug back in at 10-11pm, I still have 30-40% battery life. I'm not a power user by any means.. Just texting and emails on the most part, with maybe 30-45 minutes of browsing tapatalk/google reader. Maybe spend 30-40 minutes listening to mp3s on my commute. The occasional short game while I'm in the can.
I actually ported my number to google voice for this phone. I do miss the native MMS a bit, but I've gotten pretty used to emailing pictures by now, and all my friends have smartphones anyways so it's pretty seamless for them. I love being able to text anywhere in the world where I have wifi for free as well.