I actually had the Proxxon FKS/E and it was pretty good, especially for very small and precise cuts. Although I had a better aluminum miter and rip fence made (precise to 1/10 of a mm), including an extension for larger sheets and it fitted exactly in one SYS 4.
I don't think you'll find a better micro saw in this price range if you need that degree of precision.
I've sold mine, because the TS55 and the MFT is accurate enough for me, but for architectural or design models, humidors or jewlery boxes..........., it's really usefull.