I have grown up around animals, from horses to rabbits to cats. But dogs were always my favourites. I have listed 6 years as my personal experience because that was the amount of time I was the primary care giver for my dog. However I have had plenty of prior experience taking care of the family dog's. Since moving to the city I have missed having dog friends and have dog sat for a couple of my human friends to make up for it. I probably shouldn't say this but I would do this service for free to be honest! Also, as I grew up on a large farm which had many dogs in all shapes, breeds and size, I would have no problem taking care of your big dog.