The rack only went on a week ago, so I haven't really used it. I will say, the B rack gives decent real estate so I can fit some stuff on it; I just haven't decided what should go up there yet. However, there is no wind noise and it's fairly light, so in general I have a positive impression.
The table is just super convenient. It's so easy to pull out and put them, making lunch on the trail a breeze. You can, of course, store a folding table inside the camper and that would give about the same usefulness. However, we try to minimize the amount of dirt inside the camper, to the point of taking our shoes off before entering, so storing the table outside the camper helps keep things cleaner. Also, the table has a large amount of surface area so you can put a good amount of stuff on it. It's also just conveniently stored in an underutilized area, leaving more space inside the camper for other items.
THx
Would MaxTrax fit on your rack?
Ya - that table at 48" * 30 is plenty of real estate - for sure. Having a metal surface is a must as well. The table I have used is 24" * 48" and I am very happy with it - not too wide not too narrow - because too narrow (18") ends up being a PITA. I just added a stainless steel metal top to mine - which makes it great if you have to place a hot pan on it and clean up way easier.