I had one on my GMC before I switched to the Truxedo. I guarantee you didn't open that cover with an inch of ice on it and if you did, you wouldn't like the sounds you hear as it rolls up into the can at the front. The main reason I got rid of my Roll N Lock was due to it taking up 10 inches of space in the front of my box and it froze up continuously in the winter. I had to leave it open all winter if I wanted access to my truck box. The only positives I would say about Roll N Lock is that you could stand on it (very strong) and it was virtually impossible to break into (of course, mine was the old model that was 100% aluminum and didn't have the vinyl on top of it).