I am a moderate low user running GingerVolt V1.2. I unplug my phone at 6AM and go to work. I talk for about an 1hr/day, surf the net, email, game for 1hr/day. I pass a 4G area on the way to work but for the most part I am strictly 3G with LTE on. I used to get 9-10 HRs before my phone would die.
I bought my 2900 mAh battery from the verizon store. My phone has been unplugged for 1 Day 15 Hrs with 25% battery left!!! I could go 2 Days but that would be pushing it.
The extended battery is bulky and does make the phone a bit heavier but I think I have a better grip of it now. The protrusion seems to be a good finger wedge. Furthermore, I really didn't feel a difference while my phone was in my pocket.
Overall I fell in love with my phone again. I can be free of the power cord longer than you.