They are very attractive, but plagued by low quality MDF, brittle hardware, and low quality workmanship. The holes and slots don't line up, so be prepared for trial and error, and putting things together out of order to compensate, for example drawer bottoms. The dowel holes are way too deep and way too large diameter, making a robust assembly all but impossible without finding larger dowels. The cam lock pieces are a very low grade stamping, meaning even minimal torque will cause them to crumble.  These kits make Sauder look like fine furniture.