Finally got my grip today from B & H.I thought I would only use the horizontal grip,which greatly improves handling, but I really like how the camera feels with both halves on it.By moving the shutter button forward,your hand is spread out more and the placement of the buttons and dials is much more intuitive and relaxed.Also,there is a rubbery coating on both parts that just grips like glue.Yes, it is much larger, a little heavier.but after a few minutes of adjusting, the weight seems to melt away.I rarely shoot in portrait mode,so I really won't use the bottom buttons, but I like the heft and a resting place for my pinky finger.There is an issue with the batteries that I didn't foresee. If you only use the top part, then you must remove the grip to access the battery.This is no problem sitting at my desk, but out on the street shooting, it will be a royal pain in the ass juggling the camera, battery and grip at once.With both parts attached,problem solved, as the bottom battery compartment is easily opened. I can see myself using both when I am close to home and out taking pictures,but they will most likely stay home when I travel. I have a dumb question.How do you activate the bottom buttons on the grip?I also understand you can designate the order of battery usage as well.Thanks in advance. BTW, I'm not wild about what it cost me, money that could have gone towards a new lens,however,this thing has quality written all over it.