First off, I have been a long time user of the Salomon Speedcross 3 and 4. Loved that shoe but the tight toe box limited the type of sock I could wear when using them. So I decided to try the Hellcat. Wore 9.5 in Salomon, ordered the same size in Boombah. Just as comfortable as the Salomon with the same aggressive tread, slightly wider so my foot felt more comfortable. I noticed no movement of my foot over the 15 stages I shot over Saturday and Sunday. Other than the usual fatigue of moving that much, my feet did feel better than the same amount with the Salomon's. Not a knock on the Speedcross, just pointing out they don't run as wide and moving up another half size did not change anything other than the shoe was not as good a fit anymore.
All in all, I like this shoe, have not run it in inclement weather and others have commented that on a wet floor, they are slippery, so until I hit a wet fault line at speed, I won't know how they behave.
My one complaint about the shoe - white shoelaces. Come on, give me a choice of colors or just put black laces on all of them.