This has been discussed before. The general consensus is that the fiamma is the way to go. I was told by our dealer that the bag awnings are more stable during storms etc, but after raising this on here was promptly told that is a load of salesman BS and that nobody has ever had a problem with the fiamma, so that's the way I would go with 20/20 hindsight. Not sure if the walls are any easier to attach tho.