I've had it for about 2–3 weeks and use it 2–3 times a week.

Negatives:
- The “safety catches” are quite short, so they can barely catch the bar if you fail a lift.
- Mine has definitely become crooked, because every week I have to loosen the screws a little and tighten them again so it sits evenly.
- There isn't enough space between them to do squats.
- It's not stable, with or without weights (about 100 kg).
- Quite a lot of screws to assemble.
- Quite awkward to adjust the height.

Positives:
- Several height settings.
- Safety catches in case you fail a lift.

Get something higher quality, perhaps not two separate pieces but one solid unit. It does the job, but you can't trust it even with 50 kg; one wrong move and everything could easily fall.

Very good choice for its price. As many have already mentioned in the comments, the stands are stable, sturdy, and at a very satisfactory height. For those who may not know, assembly is done with a wrench and not a screwdriver, which is not provided; only the nuts, bolts, and instructions are included. Finally, they generally do not take up too much space in the room; it depends on how far apart each person places them for the exercises they want.

I've had them for over a month. They are of very good quality, sturdy, I can't find anything negative. They do exactly what they say. I should add that they have a very nice finish with carefully selected materials. It's also important that they have a second safety stop in case you are working out alone on a flat bench. Of course, on the incline bench you can't use the second stops.

Notable products

Excellent product, very stable even on not completely level ground outdoors. The height adjustment range is also large, 1.80, and I can do squats just like in the gym rack. The assembly is ridiculously easy, basically you just screw on the bases, nothing else. For squats and shoulder presses at home, it's an amazing solution, buy it without hesitation.

unstable for heavy weights.... fortunately, they have adhesive rubber pads in the package to stick to the floor in case they move........ for limited space, though, it is..... good..... it gets the job done

Sturdy stands and relatively lightweight. I can easily move them when I need them for training. I mainly use them for squats, but also for shoulders.

I believe it was the right choice and of course, I highly recommend them.

Very good value for their money. I give 4 stars because the only negative is that they may come poorly glued from the factory. If not, then they are excellent.

They are quite stable and I believe they can become even better with adjustments and grip on the ground

After researching, I ended up with these specific orthostats.
They are sturdy.
One of the reasons I chose them is that they have many height adjustment options.
There are more expensive orthostats on the market that I could buy, but there is no reason to go for something more expensive.
For my personal home gym, they are more than enough.
I highly recommend them.