I was worried because quite a few reviews were negative, especially re chips on arrival.  Mine arrived perfect, but I did note that it was double packaged in cardboard, so perhaps the supplier has upped the protection.  Also I ordered black, and I had noticed that quite a few of the negative reviews were on white, so perhaps there is a separate problem there.  I haven't assembled it yet, but the connections are standard for such units these days.   Estimate 1 1/2 hrs for the first one and 45 mins for the second for any competent assembler.  I will be putting in tracks to carry cables and cutting extra holes for wires to take grommets as I assemble since that will be much easier to as you go that after it is all together.