Rowan,
I've seen mixed reviews on this kit, with way too many points of view from modelers who never built, tested fitted, nor measured the kit. From the one build I'm currently following, the kit does build up into an impressive F-101A. There really aren't major fit issues, but there are a few that will require some work to correct. Sink marks abound, and many are very deep and quite noticeable. Some small points make little sense like the front gear ground lights being solid, so you'll have to drill them out. Another point is the formation lights that are molded on, and are way too thick.
Personally, I'll be buying the B version before the A version, as it's my favorite F-10l.
Joel