Would not buy again!
Your review: The notches at 1 inch increments are not a good way to secure the shelves. Not all the notches were cut correctly. My husband had to file the notches and add electrical tape so that one of the brackets holding the shelves would be flush against the post to be secure. This was a bad design. It was also very difficult to put together and required 2 people. I would rather have a shelving unit without so many shelving positions that is better designed to secure the shelves to the posts.
Pros: I am now using it and it appears to be steady.
Cons: Bad design with respect to how the shelves secure to the posts. Slight flaws in the manufacturing of the unit results in major problems when trying to put the thing together!