Others would have to comment on the chipset being any good, but as far as ECS are concerned, I place them minimally below ASRock in my personal manuf list.
Both manufs make minimally solid boards, and past ASRocks I`ve taken ownership of have actually clocked for a %.
But especially in the states, users have bought ECS boards b4 I`ve stepped in (due to being nicely priced usually) and I`ve not had any issues with them from stock.
It`s all imo of course.