I have both and like them for different reasons (which is why I have them both). I actually also have the Bosch JS572 saw (which I believe has a different model number in Europe). For me the perpendicular cuts and ease of base changes is awesome. Yes, certain angle cuts are not as convenient with the Carvex which is why I kept the other saws -- in fact, I think that the Bosch angle adjustment is the fastest and easiest to use for scribing cuts. But, the Carvex base allows you to do other angled cuts easier. Also, the circle cutter is hands don the best I have seen or used and for me, that alone was worth the cost of the saw and accessories. Large circle cuts for table tops is a breeze and not having to muscle large slabs on a bandsaw or use a router that is slow and noisy is a huge plus. The cuts are amazing and I like the stroboscopic lights and the weight of the tool -- it actually feels like an extension of my hand and I have been able to make very accurate joinery cuts with mine. Blade visibility is also great and not so great on the Trion. I think that the Trion excels when using a guide rail as the guide rail attachment has no slop in the rail and you do not need to see the blade when cutting in this manner anyway. And, the cuts are perpendicular too. If I could only have one saw, then the Carvex comes out on top of the three and edges out the Bosch for overall cut quality. The Bosch comes in second and the Trion comes in third -- at least for my uses.
Scot