Rated this a 4 because this mat is not perfect, but it is really good for me. I use this mat on a hardwood floor, and I leave it out all the time, so it doesn't get the wear & tear of being rolled up and transported around. I use it about 3 times per week, and it has held up quite well for going on about 9-10 months. It does not slip on the floor (not sure how it performs on other surfaces besides hardwood), and my hands don't slip on it, most of the time. I feel like it is less grippy than it was when it was brand new, but it is still grippy; I usually don't slip, but if it's humid and I'm doing sweaty yoga, hand slippage can happen. The other thing is it's long enough for me, but not that wide. If you're taller than probably about 5'7", you probably have a shoulder girdle width that might require you to position your hands partially off the mat, in order to do certain exercises comfortably (think planks, cat/cows, chaturangas.. the hands-shoulder-width-apart positions). That said, I like this mat, and I'm pleased with it (though for my next mat, I'll try to find something wider)