I won't be able to put through any serious testing today. Initial impressions are, I love it. The grip design and button layout/controls are much more to my liking than the X-T1. Not the the X-T1 is bad, but this works much better for me. The AF is very fast. And locks very quickly on dark subjects in low light. I tested on my brown/black cat, backlit by window light, with room lights off. The EVF and rear LCD are great. If you do not need the weather sealing, larger EVF, and/or larger size of the XT-1, then this is the camera to get. For people with larger hands, a RRS plate or battery grip will balance things out. Fuji really hit a home run with the X-T10.
Also I wanted to add, I am glad the sd card goes in the battery compartment. At least until Fuji makes a better door implementation for the X-T1. I constantly remove the door when taking the card out, which is a serious rectal pain for people with short fat fingers. I hate having to put the door back on.