I've assembled (and reassembled) many grills in my life, and this one beat them all out. The assembly is smooth and clearly described. The way the wiring or gas hosing is tied in the cabinet is excellent. The finished grill is sturdy, with quality components that live up to the Weber reputation. 
And the end result? I've cooked some NY strips and a teriyaki salmon with outstanding results. The grill probe and meat probes worked perfectly, even using just a USB battery pack to operate them.