Well, we have tons of it too here in switzerland. I'm not experienced enough to tell if it's good. In german boards there are more people who have used it, and they argue every time it comes to norgy maple.
It seems that it is actually quite strong in tension and compression. It's a pleasure to work, never tears or splinters, cuts like butter. It's often straight and can grow fat rings with little earlywood. Easy to glue. Those are the good sides.
But also it easily becomes plastic (soft and rubbery) from bending with heat. That I can confirm, happened to me three times. It's said to vary wildly in quality, even sister staves. Some say it's weak in tension, some say it's weak in compression. I don't now. I certainly won't bend it for fun anymore like on this one.
Apart from that, this piece was really good to work with, I just did what I felt like and was never restricted by the woods properties. It was close to that "ideal piece" a beginner like me feels save with, where you can just draw an ideal straight bow in the back and cut it out and that's it. ;D