On an overnight visit to Key West, we arrived on a Saturday in the mid afternoon. We had been to Key West some years before, and wanted to return. It was a very busy weekend as there was a Motorcyclist Charity Poker Convention going on, so all the centrally located accomodation was fully booked.
We found rooms available at the Waterfront Marriot Courtyard Hotel. Because of the high demand that weekend, they had hiked up there rates considerably, but as we had little choice, we booked for one night only. The reception staff proved to be businesslike, but not very friendly. The two en-suite we were allocated, were of a reasonable standard and clean, but the bathrooms were invaded by black ants.
A shuttle service into Key West was provided, which we took advantage of that evening.
We took breakfast next morning, buffet style which was basic but edible. When it came to check out, we discovered that, in addition to the nightly room rate, they added a 6 per cent local tax charge and a 12 per cent room tax charge, something that they failed to mention at check in.
This amount, when added together, would have allowed us to spend another 3 nights at many other hotel chains in Florida.
Key West is a magical place to visit, go if you can, but be warned, check prices carefully.

Pros: Waterfront location; nice pool; clean room & bath; comfortable beds; helpful front-desk staff.
Cons: Over 2 miles from downtown; our rooms faced noisy Route 1; garbage trucks awoke us as 3AM.
We reserved a 2 room suite, but found it had only 2 beds. Front desk substituted 2 regular rooms without hassle. On a previous visit we stayed at the Doubletree, which was a much nicer hotel, though even further from downtown. We were expecting the Marriott to be as nice, but it was definitely a lower class property despite the high price - outside entrances to rooms, no elevator, etc. Next time we'll stay at the Doubletree, or maybe try the Westin.

This hotel is the next best thing to staying at a B&B near Duval. While not in the old town, the CY Marriott is fairly close to it (a mile or so), and we just took our car into the town and always found metered or free parking. The rooms are nicely appointed (we had a queen suite with an extra jacuzzi tub & kitchenette) and the courtyard garden around the pool beautifully landscaped in a tropical theme. There is even a tiny mini-beach with sunchairs. Try to get a room away from the street to avoid any street noise. The breakfast is ok and the receptionists were always helpful. Overall a great experience!

We love this place. We had planned on staying one night in Key West. We ended up staying 4 nights. It is a little ways from the downtown, but it has a free shuttle running ever hour until 11pm or so. Which works great. The staff was very friendly and helpful. The full buffet breakfast was included in the price. From the boardwalk we saw lots of interesting sea creatures. We will definately stay here on our next trip.