I actually made a video for this battery, or I assume its the same one.. I ordered the 2700 because I didn't like the way the 3500 curved but I ended up getting the 3500 and you adjust to it pretty quick, got mine months ago still holding up strong, can get easy 40 hours on my kind of usage when its moderate and on heavy usage (my style) 24-28 hours.
In order of current..
Phones: Samsung Galaxy S3 (T-Mo) > T-Mobile G2x > Motorola Cliq > Motorola SLVR
Rooted: Galaxy S3, G2x
S3: Stock Rooted
G2x: MIUI Last GB build available. (2.4.16?)