After browsing the message boards, had a good idea of where I wanted to eat. Unfortunately did not get to two of the destinations (Blue Heaven - too long of a wait, we were leaving and didn't have the time; El Siboney - they were closed at 9pm on a Saturday night).
We did get to A&B Lobster House for dinner. My recomendation would be to avoid it. I had a mixed grill on special - half a lobster, grilled shrimp and scallops. The shrimp were way overcooked, the lobster was drenched in butter. Scallops were good though. My lobster bisque was tasty, but didn't knock my socks off. Overpriced for what it was as well. Service was snooty. Strange for a place that has white table cloths but men in flip flops and tank tops eating at it.
BO's Fish Market was good, ambiance is a big part of the experience here. Had the grilled fish sandwich, wifey had the fried conch sandwich. Both were quite good.
Ate at 1/2 Shell Raw Bar for happy hour. Was going to go to Alonzo's but after the A&B experience, decided I didn't want to go back. The conch ceviche was EXCELLENT. Oysters were very good. 1/2 lb of peel and eats were OK. Happy with the experience overall.
There's a Cuban Coffee stand right by 1/2 Shell that charges <$2 for a great Cuban Coffee. Avoid the coffee shops on Duval, and their $4.75 prices, and try this out. Don't remember the name, sorry. Maybe someone knows the name and can post it, just a small stand.
Ate a decent breakfast at Croissants De France (sorry, I need a spell checker). I didn't hate it.
My highlights were the Cuban Coffee (anywhere) and the 1/2 Shell Conch Ceviche. Also had some decent conch chowder and conch fritters at the AIRPORT!!! Whodathunkit?
I'll go to El Siboney for lunch next time. Was disappointed that they were closed and my wife almost killed me for walking there late at night (maybe 4 - 5 blocks off of Duval, not a well lit street).
I have to add a note on Caribbean Blue. They replaced the old José's Cantina on White Street.
Cuban food, superior to El Siboney, and cheap. Best dish is the puerco asado /roast pork- $11- !!
New restaurants, decent food, and meals under $25 are all scarce in Key West, so I'm enjoying this.
800 White St. at Petronia
Had the Cuban coffee and a Cuban sandwich from Cuban Coffee Queen a couple weeks ago after learning about it on a thread here somewhere. Both excellent. Blue Heaven, B.O.'s Fishwagon, Schooner Wharf and Hogfish Grill (on Stock Island) to name a few other favorites on our latest visit.
Blue Heaven Restaurant
729 Thomas St, Key West, FL 33040
Don't give up on El Siboney. It's out first stop every visit to Key West. It has great local atmosphere and great Cuban Food. And don't worry about the "not-well lit street." Part of its charm is that it's tucked into a quiet residential neighborhood; perfectly safe.
900 Catherine St, Key West, FL 33040