What is Reddit's opinion of Pull Up Mate (no bag) - Freestanding, Portable Pull Up Bar & Dip Station. Multi-functional, Hundreds of Bodyweight/Calisthenics Exercises, Great for Circuit and Functional Training?

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Have anybody tried one of those portable pull up racks, like this one? I need somewhere to hang my rings and the closest place where I can hang them is about a mile from where I live which isn't ideal when you need to squeeze in a workout on a tight schedule and the place is usually pretty crowded, so I feel a bit silly when I hang my rings there and occupy the bars when I alternate between doing ring excercises, resting, doing pushups, resting and going back to the rings.

I don't have any suitable tree branches around here or anything like that either, so it feels like one of those portable pull up racks is the best solution so I can just put it up in my back yard and take it down when I don't use it.

Have anybody tried buying a portable pull up rack, like this? I'm looking for something I can put up in my back yard to hang my rings from and put away so it doesn't get ruined by the weather, I don't have any suitable tree branches close to where I live and I live in Sweden where we have crappy weather a lot of the time, it's still snowing here and it's almost April.

It's pretty expensive but I can't think of any better solutions, do you people have any suggestions?