I've ridden my Signal Flat Park quite a few times now and I give it a thumbs up. It's not the same board as the one you're looking at, but construction-wise I'm very happy with Signal so far. The board is light, sintered base, and very even and predictable flex. I still suck in the park, but I can very much see myself progressing well with it.
Keep in mind the Vita has quite a lot of rocker towards the tips. No idea how that will make the ride feel, but I've read a few posts from Nivek who rode the Rocker saying it's surprisingly fun cause of it. I imagine it'll make presses easier to pull off at the least.