PROS:  All pros really. Really well made, great for all terrain running with it's gripping rubber cleat's on the bottom, very little suede to worry about and dark enough not to really show stains from mud, reflective thingy on the back of them is cool too, and of course... really comfortable.

CONS:  Because of the awesome sort of "rubber cleat's", I would recommend keeping 2 pairs:
One for street running (flat soles) & THIS ONE for outdoor/off-road/all-terrain trail running.

That's what I do.  I have some flat sole white Adidas running shoes with dr. scholls insteps for concrete/asphalt trail running.
Not really a negative thing, just keep these in good shape, by using them for what they're best for. Or buy 2 pair of these and wear one down.

Also, sizing is a little tight, might want to think about getting a half size up (normally 11 = order 11.5)