Positives:
* Well crafted
* Good to tie up
* Waterproof bottom
* Even in winter no socks required (as long as you move)
* Conditioned city-compatible (as opposed to 5-finger ...)
Negatives:
* Sole significantly "harder" than 5-finger (a matter of taste, but you can on gravel run well)
* Significantly more slippery than 5-finger (particularly on smooth wet surfaces)