I've lived in Vista B and A for a year when I was studying at APIIT..
I can say that the management in that place is below expectations..
It is a little quite though, because it only has a small shop within the sports complex.. So sometimes it's inconvenient..
I would recommend Arena Green, although it's a little older, but you can find lots of convenient shops all at the ground floor, including 7-11.. It's also a lot closer to BJ LRT (walking should take 5-10 mins).. With amenities like basketball court, it's not a quite place at all.. Consider it..