I have taken up the penny whistle in the last few months, interested in the low D as well, I love the sound..
Both are a lot more portable than my usual guitar
The more I play, I see the humble penny whistle is quite an instrument and not a toy as it is often seen as from the general community? A relatively small outcome to purchase a great musical instrument to be mastered
Currently I have a handful or Generation whistles, an MK Kelpie Low D and a Milligan high D on the way