Battery Grip

[Norotso]

Couldn't find anything related on the search, so... I want to invest in a battery grip in the near future. I found a compatible model from a company I have dealt with before. Is there really a noticeable difference with such an item :confused:

MB-D80 (http://www.bestbatt.com/Nikon_MB_D80_Battery_Grip_for_D80_D90_p/bbd80gripx.htm)