I bought this highchair for my son when he was about 6 months, when he could sit unaided. One thing I noticed straight away was the plastic bar that is in middle of the seat and prevents your baby slipping down when sitting. I found that excellent feature. There is 5 point harness as well to assure the safety of your baby. The chair is very easy to put up and fold down again. I have to fold it every time he finnishes eating, because I have a small flat and the highchair may appear a bit bulky when using it in a small room. Someone mentioned in another post that the basket underneath collects crumbs and dust which is quite true, though you can just remove it completely. I haven't been really using the basket anyway. Just found my son climbing into it a few times. The highchair is light, 6.3 kg and very easy to wipe with dump cloth. You can remove the padded seat covers and wash it as well.
The tray is removable and has 4 positions as your baby grows, and the back rest reclines in 3 positions which is quite handy when your baby rests after his meal.
The measurements are:
Seat height: 68cm
Unfolded: H82 x W58 x D101cm
Folded: H92 x W58 x D41cm
Weight: 6.3 kg
I would buy it again