check out vrbo.com and airbnb.com. Both have rentals offered by owners - so you can rent a condo, house, apartment ... etc. Most come fully stocked (kitchen), some offer housekeeping, many have a local "handy-man" to call upon in case of emergency, some will even offer boats, cars, four-wheelers - etc. Each listing usually has a review from past renters.
Airbnb.com has "rooms" as well as entire units .. "rooms" meaning you will be living with the host. They do have some entire units for rent though.