DD loves playing her descant and would like to move up (and I'd appreciate a mellower tone
). I'm not sure of the pros and cons of alto versus tenor though. As far as I can see: Tenor has same fingering but is twice the size of a descant; Alto has different fingering but is only 50% bigger. DD is 12 but has small hands - she does play the flute and manages that ok so not sure whether tenor would be too big or not. (She's going to see if she can try one at school).
Then, if we go ahead, I have no idea as to make or model or whether you get much benefit from spending more. As it would be her 'big present' I'd spend up to £100 if I had to but don't want to do that unless its really worth it. With tenors there is also the choice of key or keyless - my guess is with small hands the key would be useful?
Any advice much appreciated!