I purchased one of theses units and ended up going back to buy a second one. I got rid of a Bakers Rack in my kitchen and set this up instead. It gives me more storage space, doesn't take up a lot of room and is easy to assemble. There are no tools required, just stacking the shelves and screwing the poles together one level at a time. It's a great product for the price and I'm thinking about buying a few more for storage space in my small house. It only took about ten to fifteen minutes to put together. Very simple to understand instructions. This would be a great product for the college student. The shelving unit comes with a wall mounting kit to easily mount to a wall to create even more space.They look like you could probably stack them if you bought two sets. The wall mount would be advisable if stacking two units together though.