Definitely the biggest hardware release for the A600 (and eventually the Amiga) for a very very long time.
The A500 and A1200 versions will be welcomed too.
I see that they have plans, beyond the "Gold" core, to implement more chipset aspects within the FPGA, using the rest of the host Amiga as time goes on. Personally I'd like to see decent AHI audio done before AGA emulation, but I'm not setting the roadmap.
Obviously this leads to a future standalone Vampire Amiga - FPGA and RAM and I/O - in the same lines as MiniMig, Mist and FpgaArcade. Maybe in a couple of years? I guess the clue's in the name here, Vampire :-)