We bought this online and had it shipped.  Upon receiving, I took inventory of everything in each box with the included parts list.  It made it a lot easier to have everything laid out when building.  The instructions were easy to follow which was very nice.  Be extra careful to match the pilot holes with what's on the pictures.  The two issues we ran into were with improperly drilled pilot holes and some missing hardware.  Once we figured out the pilot holes were wrong (especially on B5), we just measured and drilled them out ourselves.  We ended up running to the local hardware store for the lags and bolts that were missing here and there just so we could get everything finished.  Now that it's done, it looks beautiful and the kids love it!