They are beautiful and hold a lot of books.  Yes, they are time consuming to assemble but the instructions are very well written and clear to follow.  The pilot holes for the back panels are poorly aligned, but I adjusted for it.  Both bookcases had some quality issues and Wayfair was wonderful about resolving them to my satisfaction.  I shop with Wayfair because of their excellent customer service, and it helps that they have the best selection and prices on items I need.  These bookcases are solid wood, and have the density and qualify of fine furniture.