Has anyone here ridden one or own(ed) one?

Brooks Cycles sells them here: 7VRN Carbon Track Frame - Brooks Cycles
and identical geometry framesets are all over eBay.

The frame geometry seems like it checks all the boxes for more traditional track geo and not a TT bike with track ends, but the 45 mm rake fork worries me. The 74.5 deg HT angle combined with a 45 mm rake fork would give an extremely twitchy 47 mm of trail. Most other track bikes are in the 57-63 mm trail range. Of course an easy solution would be to swap in a shorter rake fork, but one shouldn't have to automatically buy a second fork for a frameset to ride/steer predictably.