I bought a Century mutilated CETME. It broke the cast sear after less than 100 rounds while clearing a jam. I sent it back to Century and to their credit the repaired it quickly and sent it back.
In my opinion The CETME as originally built (in select fire) was a good rifle with good forged steel parts. In order to bring these rifle into the USA market as semi-auto rifles Century had to make a ner receiver and fire control group (trigger, hammer, sear) that is semi-auto only. Century uses cast parts to keep the cost down and these are failure prone as compared to the original forged parts. Plus the other parts are well worn military parts in various condition. The price is right and you are getting the same delayed roller action that H&K borrowed from CETME and made famous. Don't flame me if I got the heritage wrong please!
The muzzle brake put on by Century is certainly loud! I swapped mine out for one that looks like an AR15 flash hider but bigger, refinished the wood, and had the metal done up in OD Green by Arizona Expert Arms (AZEX), he has a picture of it on his website. It looks cool and runs pretty good now. But magazine changes are fustrating as the release button is way stiff.
Bottom line is there is no free lunch, if you want a 100% reliable, trust you life to it battle rifle there is no beating a good FAL from DSA or AZEX, but it will cost you $800 to $1,200. A worked over M1A will cost even more. Do like me and get one of each! (It is the arfcom way)