I will start off that I am so pleased with this pullup bar, and customer service is exceptional! With that being said, I did have a few issues (reason for 4 stars). Originally, my package wasn't picked up and I had to contact customer service. Once it arrived, the nuts and bolts were missing (I found a video on YouTube of a guy that had the same issue). I had to contact customer service again. It took about 15 days, as the missing parts came from China . There are NO instructions, but they include a diagram with numbers that correspond to the parts list. It's pretty easy to put together, and I did it by myself. There are a couple videos on YouTube that are helpful too. It is good quality and sturdy, for the most part. I am able to do kipping movements and butterfly pullups, BUT I had to raise the bar, to really widen the base, so it wouldn't come off the floor. I also found that if you move the two connecting cross bars UP to the higher bolts (where you lower / raise the bar) it becomes sturdier and the whole thing won't move as much. A taller person wouldn't be able to do this, but you can always just weigh it down. IMO, you don't need the second (lower) pullup bar. I didn't install it on mine and don't feel like it's necessary. It is easy to use and fold up, and it really doesn't take up much space.