4 stars only because of the price. However, I have been using it for almost 2 months now, using it 4 times a week for squats and lunges, and it helps a lot. However, it is quite heavy. I am 185 cm tall and when I bought it, I weighed 96 kg (26%-28% body fat). Now that the exercises have become more of a routine and my muscles have gotten used to it, while also losing weight, I think it is quite comfortable. I have no complaints about the quality.

EDIT 02/08/2023

2+ years after the purchase. In terms of quality, it has held up quite well considering that I have left it out in the sun for a while. If I remember correctly, I bought it for around 40 euros, but I'm not sure anymore, now it costs 25. If someone wants to start strength training and can't do pull-ups, they should get it, it helps a lot.