I ordered Eb Cobre whistle to compare it with my other Kerry whistles (Optima, The Busker, Chieftan). And it's amazing. It is very playable, and it's breaking easy for upper octave. Also, it takes virtualy no air to play it. Intonation is good and you can record or perform with it no problem. Also, it's tunable. You don't have any problem with condensation or excess saliva and you don't need to warm up instrument for playing. You just play. It takes about 2-3 weeks to tarnish, and then you have chocolate color instrument. I like that very much. Sound is beautiful, clean, joyfull, light, but also loud enough for performance with band. It's not so painfully loud as The Busker, so it's good instrument for practising without annoyed neighbors. This whistle made me order two other Cobre models, soprano C and soprano D, and those are also top quality.