You can fold and unfold it in less than 3 seconds. To unfold, just pull the arms apart and the chair's legs will pop open. To fold, pull the inch-wide strap at the back of the chair which pulls the legs back together.
The leg holes are too small (about 5 inches in diameter) and bigger babies with bigger legs cannot fit in them. What some parents did was make the holes bigger by carefully cutting the fabric, still following the circle of the leg holes.
This high chair was made for outdoor family activities like camping. It is very light at 7.6 lbs and since it has a carrying shoulder bag similar to adult camping chair and its bag, you can bring it anywhere with ease.
The tray which is made of the same fabric as the rest of the high chair has no support underneath it. You cannot put a plate on the tray without it sliding towards your baby. There is a hack, however. You can lift the steel frame of the arms a few inches up where they are hooked to the mainframe...