We have a trip to Europe coming this Aug/Sep, and I'm already dreading the thought of lugging around my gear (I will not ask what lenses to take

, so would take all of them and two bodies). 17-55, 24-105, 100 macro, TSE 24, 70-200 f/2.8. Nasty.
The whole european continent in a single trip?

Sorry, it's just fun we hear you talking about visiting "Europe"

Having said that, I had the chance to play a little with those toys. They're good, very good.
Light and well built. The choice to produce a little number of optics, all with a medium to high quality is a winner to me.
They're just quite expensive, yet a very good choice for travels or hikes.
I just don't have the resources to start from scratch with another brand, but if you do, I think you won't be disappointed.
Paolo