Lol, we can't tell you if it's low enough. All you have to do is squat on to it and look to see where your hip joint is in relation to the top of your knee. I would be a little more worried about it falling to a side, supporting the weight, and it looks like the seat area is a little small. You want it big enough so your whole butt can fit on it, you don't want it so small that you might miss it or only sit half on it.
Just try some with just body weight and make sure it's stable and big enough.