We play a lot of cards with our grandson, mostly UN, abe also Romme, MauMau etc. Over time the card suffer from the mixing, therefore should establish a blender - long I've often if the bad reviews for the right model for - this is it! Although you have to boost, but even old cards are shuffled without hesitation. The key is really just that you turn the crank evenly and not too slow. Then `s perfectly. Even our 6 year old grandson brings. And tangled but once a card output hopper - no problem, you is easier to get. Buy recommendation!