Gifts of a Lifetime

[tiggertoo]

I am considering using Gifts of a Lifetime
for a surprise for my group on our next
DVC trip.

I know all about Gifts of a Lifetime
and I know they are fantastic.

My question is: Is it considered
appropriate to tip them for their services ?
Has anyone ever used them and tipped them
afterwards ?
Thanks for any information you may have.

:)