I selected this place thinking on the location, Big Pine Key, which for us is the best area in the keys. It was a bad choice, the cabin was dirty, smells bad, you do not see the dirty spoots at first because the wooden walls but them in the bathroom you can see the splashes around the toilet, hairs and dust. The kitchen has dirty equipments, the ceiling fan had alot of dust, air conditioner not working good (hot..hot..hot), bed very unconfortable.
The marina is dirty and full of seaweed, smells really bad, if you have a jet boat don't even think about it.
We ended cancelling the two other nights and going to The Parmer's Resort near by. The only good experience is the visit to the "No name pub", you can walk to this place, is around the corner.
My advice for you is not to go there....they lack of cleanliness big time.

4 of us stayed at one of the larger, 2 bedroom cottages. We were pleasantly surprised at the cleanliness and value. These are not fancy rooms, but housekeeping cottages that are simple, clean and well equipped.

We had unusual access to several of the rooms. We made a truly last minute call to OWB when our first motel turned out to be the breeding grounds for vermin. Charlie rescued us by taking us in. He didn't have a single unit available for the whole week, but he did have one for the beginning, another for the middle and one for the end. They were close enough that it wasn't too much trouble to move. The units were very nice. Well equipped, ( I agree with one of the comments that the bathrooms are small, but I don't spend a lot of time there so who cares). The units we stayed in were all clean and comfortable (it was average 92 during the day and 86 at night the week were there so working A/C was a must.

Next time we go to the lower keys we'll call OWB and stay there.

We stayed in cabin B on the stilts with the deck and we love it. It is rustic and more of an old keys type of place. If you have stayed in old cottages in New England especially, than this is the place for you.
The boat launch is 20 yards away and so is the invaluable Capt. Keogh. His kayak rental place is right there at the boat ramp.
The staff at OWB is so helpful all you have to do is ask. If you are an introvert or someone who expects to be pampered this is not the place for you. However if you love to interact with locals who always have good advice or who will help at the drop of a hat then OWB is the place. We were exploring with the kayaks everyday and the surroundings were amazing. The beds could be updated in fairness to another review that I read however we were so tired after every days adventure that it hardly mattered.
Thanks OWB still dreaming of the water.