I'm impressed in the sense of the concept not looking horrible, remember that awful controller that had screen on it.
However I am more reserved in the regards of non-nintendo support side of things. It will have bigger titles I imagine, like Monster Hunter, and Dragon Quest, but the niche might actually go ps4/mobile more so than anything else.
I feel this Nintendo device, could have helped the vita in software, but I think they would have to be able to make those games do really well on both devices, where I think in actuality the focus will grow to more PS4 centric, like how I believe Tales of Besteria should have been on the Vita as well, but instead they focused on the PS4.
(I might need to reword the last paragraph, it seems off.)