I received mine last Saturday (12/22) - perfect, since I was home all day.
The box was dusty but in good condition and very heavy. Got two friends over to help me unpack and install - took about 40 minutes.
I agree, the instructions are a bit wanting - they assume a mechanical inclination, common sense and good eyesight.
I wasn't sure about the pre-lubrication on the belt, so I re-lubed the belt and followed all instructions to the letter. The screws fit in just fine, make sure you install the rectangular clamp washers in the proper orientation. Having a well-stocked toolbox helped a lot.
Used the treadmill itself twice so far. It is quite silent, rock steady, the built-in fan is barely OK, but the speakers are great. The fold and roll away feature is excellent.
Liking it so far.