well, I am kind of hard headed,  68 years old, thought I would assemble my two bookcases alone..  it took 3 days to open everything, make sure everything was there and start assembling.  I got to step 4 and realized how hard it is for me and  I really needed another person.  So, I got the "handy" assembly service...Amazing..he had both put together in a matter of 2 hours, and even pointed out to me an imperfection that I didn't notice...it was on top so no one can see it.  I will definitely use this service again.  Very happy with the service.