Hi Pauline
You will have a lovely time with Karylin. She was TM on my very first tour (with what was then Page & Moy), Eastern Canada, back in 2008. She was super and really looked after us well. Nothing was too much trouble for her.
I've also done the Rocky Mountaineer trip and you are in for a real treat. It was my all time favourite JY trip until Ultimate Alaska topped it a couple of years ago, but it is still a very close second.
Happy travels
Mandy