I don't understand how someone can't get this to "run". oh yea, they don't know what they are doing. - Fostech Echo AR-II Drop-In Binary AR-15 Trigger

I love these triggers. Just bought my third one. It's a bit more difficult to install than a milspec trigger but if you take your time, and are competent, you should be fine. If you prefer have a smithy put it in. "Running" it is a breeze. Also, slow down. Slower is faster. I can dump 30 round pmags is 2.7 seconds all day. The only other trigger I use is a CMC drop in. But I was very surprised and happy with the "regular" mode trigger pull. Far better than milspec.
It is not practical, but if you have the rounds and can afford it. I HIGHLY recommend this trigger. I shot lots of full auto and this is a close as you will get without the tax stamp.
I say do it.