I was a T5.10 Kickstarter supporter and received my package a few days ago.
Have not been able to go over it yet, medical appointments got in the way.
(Upshot of that, I am now 4 1/2 years post diagnosis for pancreatic cancer, with no evidence of recurrence as of yet.)
At first glance, I like the Three Big Black Books reformat. As the majority of my Travelling over the years has been the Three Little Black Books (still use my set from 1978) and the attendant supplements, adventures, non-GDW materials and so forth, will take my time absorbing the changes before making a firm decision.