I have the Bialetti Venus 4 cups new and for some time the Bialetti Kitty 2 cups, so which I can compare. In Venus the mocha tastes thin, the gaps in cover are larger and the escaping water vapor condenses on the handle and runs down it. Drip, drip on the hotplate - sizzling, hissing to get through is.
The kitty is fine, otherwise I'll probably try only time other manufacturers. The name Bialetti degenerates as Bauknecht, Philips, Siemens, and how they do not all sound nice, the fig leaf. Quality conscious traditional company can be felt in this model any more.