Do you have actual feedback on their products or...? There is a lot of shit on the web to sift through so any info on quality is welcome.
I've got a buddy who built his AR with mostly DPMS components and it works fine, they get picked on quite a bit because they're kind of the kia of ARs.. There are better options out there depending on what you're looking for, whatever you choose just go in with both eyes open. It's easier to start with a better rifle instead of getting in to something cheap quick only to spend more in the long run trying to upgrade it. Read up on carbine length vs. mid length. Learn about barrels: weight, chrome lined, twist, (1:7 vs. 1:9 etc...) Learn about .223 chambers vs. 5.56mm chambers (.223 works in 5.56 but 5.56 doesn't necessarily work in a 5.56 due to tolerance issues) Keep in mind what you want to have on it as far as foregrip, light, optics, etc...
Try to stick with "mil-spec" components as opposed to commercial equivalents because it opens your possibilities with aftermarket support. An AR is like a car in the amount of "mods" and upgrades that can be performed, not to mention the things you can hook up to the rail. Also, consider optics as a major expense. A quality holographic or red dot sight is at least $400+. See EOTech and Aimpoint for ideas. I run an EOTech 512 and will get a G33STS 3x magnifier at some point.
I'm new to the game but find it to be a very fun hobby. There's so much out there to learn about and range time is lots of fun. I'd like to take some rifle/carbine and defensive use classes and get involved with IDPA matches, etc...
You're welcome to try my AR out anytime, just bring some .223 or 5.56 ammo!