What did you think of your group leader?

Teemu was excellent.  From the very start he wanted us to have fun and not take things too seriously.

Do you have any advice for potential travellers?

Honestly, don't take many clothes with you.  I know that the trip notes state this but we took our own cold weather gear anyway because we just didn't know how good the kit supplied would be.  But the kit supplied - 3 layers top and bottom plus two pairs of gloves, a hat and boots - were excellent.  I would still take your own base layer and socks although they do supply the latter if you don't have them.  You can even use the gear (apart from the cross country skis and snow shoes) on other trips too.

Is there anything else you would like to add?

The additional trips are pretty expensive so be prepared.  Everything in Finland (and the other Scandinavian countries) just seems to be a lot more expensive than they would be here.