Yes, they still look very good. We also avoid walking on them with shoes. But of course, it does happen sometimes if something is forgotten upstairs. They are also a bit slippery, and the stairs sway when walking on them. However, we have no children, so everything is still manageable.
It is beech, but not finger-jointed (or whatever it's called), so an upgrade. According to the construction specifications, this finger-jointing is usually offered (as can be seen in #61).