Was a little nervous because the weight trolly runs on the square post and haven't had the best experiences with them. But to my surprise is extremely smooth, especially with the upgraded aluminum pulleys.

Happy with the rack. I added the smith machine so technically it's an E3. Have the upgraded aluminum pulleys, definitely worth the money the difference between the included nylon and aluminum is huge. Smith machine is smooth, love the adjustability of the arms and how wide they get. Great budget option.