I have had great results from ECS boards. They work great for budget systems. Everyone I have had overclocks decently (no vCore control though) and have all lasted. I have one that is going on 7 months and one that is going on 2 years, both overclocked.
I have had to RMA one of them through newegg due to a power surge, but that went smoothly and wasn't really the board's fault. I have not actually had to deal with ECS directly, but their website is easy to navigate.