I have a 2011 and just purchased one of the MBRP ones. I liked it better than the Gobi because I can still remove the hard top with my hoist system in the garage. The Gobi would not allowed me to use the hoist, but you also keep a rack with a soft top or no top. I also didn't like having to worry about which rear bumper I get when the time comes. I'm supposed to get it Thursday, but then going out of town for a week so it will be a couple of weeks before I get around to installing it.
I will mention that Front Runner Offroad would have been my first choice for a 07-10, but they are coming out with a new one for the 11's that bolts directly to the roll cage. They told me that they had a picture of the entire jeep being lifted off the ground from the rack! I was really interested in this one, but it pretty much removes any hopes of taking the top off ever again... big con for me.