Thats interesting, especially the bit about lower cutting forces. I had always believed that due to the larger stepdown the radial forces on the spindle bearings would be far higher than with traditional milling.
I have used trochoidial milling for the first time today. While it is much faster than traditional (2 hours vs 7 hours) I can't help but think that the setup isn't right for this strategy. The machines have HSK40 spindles so the tool's taper is only about 25mm long while the tool overhang is about 120mm. Not great for stability in my opinion. Factor in the high radial forces and ceramic bearings and it seems like a breakdown waiting to happen. On the other hand the cutting times are massively shorter. And colleagues that have been here longer are using it without any hassles, for now.