I got it for my father to do some exercise for his legs, for what he wants it does its job. The only negative is that at some point it stopped showing the measurement on the screen

A simple pedal exerciser is for leg movement and more for therapy because if you want resistance training, you get an elliptical with 200. Occasionally, we apply wd40 to the axle to prevent squeaking

It's fine, especially for its price.
The only issue is that it slips a bit backwards, but if you counterbalance it somewhere like on the wall or on the balcony door to look outside, you have no problem.

For the money, it's decent. If you want something to move your feet while watching TV or browsing on your phone, it's great. Good for elderly people, for people like me who don't have time to exercise, so they sit on the couch and work out like this. It came assembled, it helps a lot that it folds, it really doesn't take up any space at all. It could have a little more resistance. Okay, I repeat, for the money, it's decent.

Unstable, poor resistance, bad bad bad. I wouldn't even give 15 euros, let alone the 40 that it cost me. Stay away!

I have had it for a month now. I don't know why it has such good reviews.
Positives:
1) The resistance reaches satisfactory levels.
2) It does the basic job.
Negatives:
1) Very squeaky. It squeaks if you use too much resistance. It squeaks because a material on the construction rubs against it (I had to cut it off). It squeaks for about five minutes at the beginning if it's cold. It squeaks because one pedal has worn down a bit (after a month of use).
2) One pedal has worn down a bit after a month of use.
3) It slips, you need to have it against a wall.
4) I haven't found (which probably isn't possible) how to reset the counters.
5) The resistance, although it reaches good levels, constantly disengages while pedaling.
6) The construction material rubs off and leaves debris on the floor (quite a lot, not joking).