[2021] Napoli is mediocre, save your money.

Having already played Napoli quite a bit - I can tell you guys that this bote is NOT a damage farmer in the same way that Petro is not a damage farmer. It's a special bote that benefits ENORMOUSLY from a player that knows exactly it's limitations and it's strenghts:
The concealment, the smoke-bomb, the torpedoes, and the super-troll armor thresholds.
With the ice-breaker on the front and the upper hull being invulnerable to overmatch, you can easily charge down enemy cruisers on a flank that don't have torpedoes and even charge battleships that don't have hydro / radar themselves. DD's are certainly dangerous, it's true - but that's where the SAP-secondaries actually shine: when a DD gets close and engages.