I used GEOS 128 for many years. In order to get high-quality print on a dot-matrix printer you needed Perfect Print LQ from Creative Micro Designs but it would match geoLaser's print quality from geoWrite.
The things that got me about GEOS is that it didn't have a ROM-based kernal, it didn't have character mode support (outside of the geoBasic editor that came from Run magazine), it didn't have extensive raster interrupt support (for writing demo code and games), and it didn't support vector glyphs for outline fonts.
Needless to say, when I got my A1200 in 1993 and found out it has all of those features or better (except the character mode support since it isn't present on the Amiga chipset), I didn't mess with GEOS very much after that. The PC version of GEOS was good but not nearly as good as AmigaOS.
