Mine is a 58 Lowered...prior to that 2 x RT 1200s and 1 x 1550 RT.
I adore my GS. I havent managed to ground out yet, but I havent ridden fully laden...yet.
The riding appears fabbo, quick to flick in twisties, confident on lumpy roads and I havent had an issue with potholes and the like. My reason for lowered is height - being only 5' 6" although I have ridden full height GS' I dont feel confident having to slide a cheek just to hold it at the lights.
I do agree with the comment about how it looks alongside a 'normal' (is there such a thing?) GS. My mate has the GSA and my GS does look a bit teeny by comparison.
Best bet is nip into the dealer and test ride a full height and then a lowered - see for yourself.