Grohe vs Hansgrohe

Over the years as I've remodeled I've replaced all my faucets with Grohe, and I'm really pleased with their performance.

I'm in the process of selecting the plumbing for the master bath. The Hansgrohe iBox looks really nice, as does their trim.

I know that these are two different companies. How do they compare quality wise?

Here is an I-box installation with trim that I did this week.
It was a bit time consuming to install. I noticed on the instructions that you can order a strap for securing the valve. That would have been nice. The upper knob was volume and diverted between shower head and tub. The lower knob was temperature.

The tile work was done by Tile specialist Inc. in Bellevue.
http://www.youtube.com/watch?v=lDU5rJZ50pk