I've heard some good reports about them but personally look at them as a cheap chinese copy.
Rather than take the risk I went for a Portamig 185 from weldequip on the mig welding forum. Check it out!
http://www.mig-welding.co.uk/forum/index.php
There's tons of resource on there and all the info you need and a few jolly good projects as well!
LG,
Steve