I built it for this specific space,so I ended up shortening the length of it but also made it wider from front to back. The original plans would have run into into the door that's to the right. My old coffee table sat here, so I went off those dimensions.
What I learned:
If you do decide to tweak the plan, be sure to take into consideration that a 2x4 isn't actually 4 inches wide. The same goes for 2x6's (the bottom two shelves are made of 2x6 wood).