i Debated for weeks about getting the extended battery and scoured the internet for reviews and pictures with not much found.. i finally took the plunge and spent the money and am very happy i did.. does it add extra bulk to the phone.. yes it does but its actually still comfortable in the hand.. if you have ever used the otter box case i think it adds about the same bulk.. the main thing is if you want to be able to leave wifi, 4g on all the time, play games and just use your phone in general all day 12+ hours and using your phone all day without worrying about battery life and being close to an outlet. then the little bit of extra bulk is worth it. i was very disappointed in battery life before i bought this and i actually love that i now can leave my 4g on and use my phone like it was intended instead of just a 300 dollar 3g phone