The Kaweco sport design is a very known one and I like it's design and sizing. The Sport is a smaller pen and using it unposted I could hold it between my thumb and "wijsvinger" muscle without the pen protruding further than my finger, with the cap posted it's a medium-sized body and writes great in either position.
The M-nib writes great and has the exact ink flow I was after. Also for an iconic pen the price is doable for new pen hobbyists as a starter pen. (Converter is small but that was to be expected