I love the sound of this recorder. It's richer, warmer and fuller than most plastic recorders. It feels slightly longer than other altos, but not by much. I'll be using it for English traditional music.
The low notes are surprisingly loud - great for playing with fiddles on their bottom string. (The bottom F is a bit quieter, but fiddles can't play below G.) The mid range is excellent. The top 4th on the fingering chart (D to G) sounds a bit less refined but the notes speak easily, although you might need to open the thumb hole a bit more. There are even more notes 'off the chart' that still play well, up to a top B. (I couldn't get a C to sound, but most English fiddlers don't like playing in third position, so they rarely play above B.)
The downside? Like most alto recorders, the top F# can be tricky. Here, the fingering is different from usual, so the individual note speaks well, but I found it difficult to fit the fingering into a run of notes. (If you try the 'usual' fingering it plays sharp.) The alternative 'knee over the end' fingering sounds ok, but this recorder has a concave end, so it is harder to do this.
So - it's a great sounding recorder, it's very agile on jumps spanning more than an octave, it covers the range of most English fiddle music, and I'll be using almost all of its two-and-a-third octaves, but I'll probably revert to a soprano when I need a high F#.