The only problem I have had with them is that one of the Velcro waist adjustment tabs came off, but given what I paid for the pants and how minor I felt the issue is I am not going to return them or anything. The pants are made of some sort of ripstop poly/cotton blend and fell pretty rugged without being heavy. Unfortunately I can't really compare them to ACUs since I have never worn ACUs but they do compare quite favorably with my army surplus BDUs. The cargo pockets are not as big, but they really don't need to be for what I do. I checked them out for signs of sloppy stitching and while perhaps not as precise as 5.11 they are certainly acceptable. Certain aspects, such as the slash pocket reinforcement, vertical slit pockets, and plastic D rings fell a bit gimmicky, but for $17 it's not a problem. All in all I am quite impressed with the pants and will probably order more.
Note: The instructions regarding the pants sizing are on the normal tactical Pants page. The exact instructions are: ""These pants run true to size, and are built so that the maximum size they can be will be the size that you ordered. The waist cinch system will then allow you to tighten them up as needed. Some customers are finding they need to order one waist size larger than they normally wear for 5.11 pants."