We stayed in the Big Marathon house in the middle of June 2019. It was exactly as described and Bill and Monique were extremely hospitable, helpful and such a pleasure to talk to. I would absolutely recommend their rentals to anyone, anytime.
The kayaks, paddle boards and pool table were such a huge bonus. We were a group of 9 and were more than comfortable either inside or out. My father is disabled and cannot climb stairs but the in-law suite was more than accommodating and manageable for him. We ate together every morning and night at the outside bar and enjoyed playing pool afterwards. Fishing from the dock, we caught lots of fish, including a little barracuda which we released. We also were entertained by a manatee for 20 minutes one morning. The dock was a huge benefit since we rented a boat during our stay. We were greeted daily by iguana’s (which I know is a nuisance in Florida but was exciting for us Californians). Even the few times it rained, we still had fun hanging out watching tv and listening to music outside in the covered areas.
(We would also recommend a visit to Robbie’s Marina in Islamorada to feed the Tarpon and have a snow cone. That was a highlight for all ages.)