I am a proud owner of a DSA carbine, and love it. Accuracy is not moa but at 100 yards off the bench with surplus it shoots under 3 inches so I'm very happy. Many pluses to the FAL such as:
#1 - Cheap mags! As little as $5.00 for quality surplus, new in wrap as little as $10.00. 30 rounders also available but usually not cheap
#2 - Reliability!
#3 - Parts availability literally hundreds of thousands made around the world, parts are plentiful & CHEAP
#4 - Like our beloved AR, you can change your rifle to many different configurations, carbine, rifle, HBAR, wood stock, synthetic, penguin style, etc etc etc.
#5 Optics are easy to mount just buy a QUALITY reciver cover with rail (such as a DSA)
#6 - Adjustable gas regulator so if you weapon gets dirty or you pick up some cheap surplus that is nt quite reliable just open the regulator a notch or 2 and you are back in business. Try that with your M1A.
#7 - Cool factor - people at the range ask: What is that? Awesome! Is that a machine gun? Where did you get that? Sure is loud! Is that thing legal? Boy I sure would like to have one of those! Are you in the foreign legion? Hey I saw one of those in a movie! Man that brass is HOT!