New guy here. I've been shooting AR's for about 3 years or so now. I started out with a DPMS Panther Bull 20 Fluted in .223. Right off the bat I was super impressed with it's accuracy and functioning. I was kind of old school and didn't believe a Semi Auto would run with 100% reliability and shoot 1/2 MOA Groups from a bench.
Well that DPMS was a tad heavier and longer than what I had envisioned, so I ended up selling it and replacing it with a Bushmaster 16" M4 ORC (which I still have). This Bushmaster was much better suited to my needs (carrying it in my Patrol Vehicle as well as a Coyote Calling Rifle).
However I missed my Bull Barrel DPMS so recently acquired a replacement. This one is a DPMS Panther Bull 20 .223. So far I have not had a single issue with it. I guess I can't imagine a better gun for the $$$.
On a different note I know 3 other officers that own, carry and use DPMS AR's and have not had a single issue with them.
To the OP, if you are pleased with your DPMS Low Pro Classic, if you are happy with the accuracy and functioning, if you are pleased with the price and the list goes on and on, then I personally wouldn't be too concerned as to what others say about brand x, y or z. Truth be known that is why that make brand x, y or z so everyone can have exactly what they want.
To me that is the bottom line, getting what the individual purchaser wants.