It has been a six weeks since I got the rifle assembled with one of the JT lower parts kits. This was my first lower assembly and it went together well. Jesse made sure I had all the part I needed and there was even a couple extra parts (those springs that can fly away at times!). I installed an ARFX stock and had to get the buffer, tube and spring which Jesse knew what I needed.
I have had the rifle out a couple times now and it is 100% functional and the trigger is actually pretty good, not gritty at all and the pull weight is about 5 pounds (by my guess).