Good, solid, value for money. The seat is fine. The bike (the 'M' variant) is magnetic; ignore the review stating otherwise - he has obviously ordered the wrong one.

I received it yesterday and this purchase did not disappoint me.
The assembly was a piece of cake, and there are instructions on how to do it.
The packaging was exemplary, I can say.
As a construction, it seems sturdy at first, it has several adjustments to fit it to your needs, and the 8-kilogram wheel is more than enough for a home workout.
I am not an athlete; I just want it for fitness, since going out on a bike in my city is dangerous with the way people drive.
In the first twenty minutes of training, the left pedal broke, which is why I deducted one star. At this price, it could have had sturdier pedals. I had to buy an extra set.
In use, it is completely silent, and the resistance adjusts without increments.
The computer it has is just for show, but at this price, you don't expect anything extreme. At least it has a distance indicator and a timer. The rest, as mentioned in the manual, are indicative values and cannot serve any precise purpose.
The seat did not bother me; it is relatively soft and comfortable for an hour or more. If it doesn't suit me later, I can replace it with an old one I have from my bike, as the mounts are compatible.
Also, I shouldn't forget the support base for a tablet or phone. It's nothing special, but it seems they put some thought into it.
For a casual workout at home, I would definitely recommend it; it's worth the money.