i’m a bartender i use these daily through out 8 hour shifts. they take time to get used to because they don’t lock as well/easily as other tins but i have grown to like them for that. i don’t spend time fighting to crack them open but sometimes i have to grip them a bit tighter to keep them from flying apart. sounds a little more dramatic than it is, you just gotta really bang them together to get a good lock. the etching on the outside also makes for better grip, sometimes when i switch to regular tins i forget that and they get slippery lol. overall when i first got them i would have given them a 3 or 4 but now im gonna say 5 because i dont like any other tins now i have two sets of these :) plus they’re cute and everyone at work know’s whose they are!