ECS = Elite Group. I consider them to be more of a value or budget board. I use them in almost any budget PC I build because of their cost <$50 with with onboard sound, video (Shared), LAN. I have never had any real problems with them, nothing more then the usual anyways.
They might have "Higher End" boards as well, but I've never used anything except their cheaper models. Not sure I would use one in a hight end game system for example but for those people that are just using office and checking email they should be fine.
I had an ECS K7S5A motherboard for a few years and had little problems, but I had a friend that had an identical system to mine and he had nothing but problems. I would stay away unless it is a deal that can't be passed up as LeeJend mentioned above.
If you are looking for a budget board check out ASROCK. I got a socket A KT600 board with all the features you'd expect from a nice board for $30 and have had zero problems. Have been very impressed with them.
ECS = ok - see a fair few of them through for refurbishing computers - seldom is it the mobo that died, so they go out again OK, not too hard to get drivers for either, so they work for me (then again I stopped buying gear years ago now... it just comes to me and they have to pay for me to take it away!)
Ep, glad to see you come back and tidy up...did want to ask a one day favor, I want to enhance my resume , was hoping you could make me administrator for a day, if so, take me right off since I won't be here to do anything, and don't know the slightest about the board, but it would be nice putting "served administrator osnn", if can do, THANKS