I have a metric Austrian (I think it is) and has some DSA parts on it.
It shoots great, and I also have a factory all DSA lightweight model. I think the lightweight model is the one to get because it is lighter and they are fairly heavy, but probably not any heavier then a AR10.
They are a pretty proven rifle, called the rifle of the free world at one time, except for the U.S. of course which went with the M14.
I like the sights better on the Metric versions, vs the Inch (English) versions, but others may not agree. Fal's are a pretty broad study and there are lots of variations, etc.