I have a differing view to all other posts about the Manduka black mat so figured I should put my 2 cents in.
I like my Manduka black mat but don't love it for the simple reason that it slips when my feet get sweaty. I'm not particularly sweaty either.
I've used it since Summer of last year and practise 1.5 - 2 hours 6 days a week which is reasonable break in time I should think.
I do think it's nicely padded, and can see that it's as spanking new as the day I bought it though. So thumbs up on safer landing and durability.
It's undeniably heavy - I thought about taking it to India last year. It took up 2/3 of my backpack capacity. Not a particularly good choice if you want just the one mat to carry around.
So, from my point of view, the Manduka black is good, but not great.