I bought a road bike from BD for $500 (Galaxy) that was similiar to the $900 Trek my LBS tried to sell me (that was 6cm too small).
You should toss their "manual" in the trash. It was so generic, it could apply to a child's trike.
However, the assembly took me just over an hour (and I'm a biking newbie and not very handy). Wheel truing had me worried, but the wheels looked pretty true, thankfully.
The bike was great, except it would not shift into low gear on the 3 ring chainset, because it would hit the frame. Bought two manuals and couldn't fix it (rarely needed it anyway except for steep, long hills). LBS couldn't figure it out (but that didn't stop them from charging me). Finally drove 70 miles to a different bike shop where they said it needed a longer spindle. BD reimbursed me for the spindle and I've put about 500 miles on the bike now.
We're now shopping for a road bike for my wife and we will buy from BD again. But get a good bike manual since the instructions from BD are worthless (so are their generic online videos - you'll find better ones on YouTube).