Me I have 2 MIT Yonex:Arcsaber 009 DX & Nanospeed 990. If I'd complain about them, that will be their paint work, which are not solid n lasting. My MIJ Voltric 80PG paint work is better, but still not better than my Li-Ning Flame N55.
You must have a seriously strong wrist and fingers if you plan on whipping the VT80 regularly. I used to have one, but sold since its seriously tiring to use and a little slow around the net in doubles and I don't really get to play singles these days. Hope it works out for you.