I have THREE in my closet right now, all function fine especially my little carbine. The finish varies, one is excellant and the other two are ok.
I have a buddy that has built a lot of FAL's over the years using DSA, Imbel, a pre-ban argie and Enterprise receivers. Last year a friend of mine wanted his South African R1 kit built on a new Hesse receiver so I made arrangements for my FAL buddy to screw it togehter, went together fine and functioned perfectly from the get go. Now, my buddy prefers DSA receivers but will tell you that all the receivers he has used needed some tweaking and one DSA wouldnt run period, so, you can bash Hesse but all of his stuff isnt junk.
If the price is right buy it! FAL kits are on a decline and future imports are not guaranteed, same with CETME's and G3's so if you want one in your line up now is not the time to hesitate.