The response is excellent. The tone is mellow and round with few overtones, similar to Mollenhauer's Dream lines.
Notes from low F and up are wonderful. It speaks very easily through the high C (highest I've gone) and trills well throughout. It plays well at a surprisingly low volume (intonation notwithstanding), but can also be fairly loud.
The low C and E are rather unstable and so must be played quietly. The low D is harsh and louder than the C or E, and so must be played quietly to blend with its neighbors and hide its harshness. While this is all normal for a baroque recorder, I was hoping for better performance from the low register based on my experience with the Waldorf Edition alto in particular.
Though my (male) hands are small-ish, I have no trouble or discomfort while playing low notes.
All things considered, the Waldorf Edition tenor is a great instrument for the price, but the weak low notes may limit its usefulness, e.g. for renaissance music.