I don't have one, but I'm beginning to appreciate some of the pieces they are coming up with especially the Senator series.
Here are some pictures which I took from the AD of some of my favourite GO models.

The Panorama Date. Simple, elegant and perfect for a dress watch.

A very handsome looking Senator Observer. Unlike the other Senator line, this has a hacking second along with a 0 second reset button. The design of the dial can be traced back to Lange pocket deck watches in the earlier part of last century.

This takes the cake. The Senator Chronometer. The dial and hands are almost a perfect and faithful to the traditional deck clocks and pocket watches design. Even the design of the calibre with 0 second reset with minute detent makes this the almost perfect technical watch. This would be the 'Richard Lange' range for GO.
Well folks, show us your GOs!