These boots fit a little small, so get them a little bigger, maybe half or full size. Toe box is quite roomy for average size feet. Heel grip is pretty good, which is why I got them, I have a narrow heel.
Here are my gripes: The tying system automatically pulls up the toe box as you are walking, no matter how you tie them, severely decreasing toe space. Ankle hold is marginal at best and the tread is very slippery. They are surprisingly waterproof though.
That is why I recommend them for walking flat trails or everyday wear. If you are hiking uphill or anywhere where it is rocky or wet, try something else, maybe Scarpa, Meindl or Lowa.