We've just bought an upright to replace our chest freezer. Like the PPs said, getting to the bottom of it and keeping it organised was a total PITA. We had a 160L chest and it held a truckload. We've gone to a 210L upright and it only holds the same amount due to space lost to shelving and baskets I guess. I wouldn't be without ours, but being a bit more remote and having less food choice than most we use it a lot.
Ours is a FP - purely because many of our appliances are as we've had such good experience with them. Energy ratings for freezers suck.