It’s a good quality for the money.  The shelves are not adjustable but actually “screwed” in. I bought it for a little coffee station and think it will serve its purpose. Also when the instructions came, it notes max 11 per shelf.  So I would consider that when determining if this fits your needs.  

Also be careful nailing in the backing at the top of the cabinet. It will split your wood on the inside. Just do the sides at the top.