Not a good first experience
I'm searching for 2 F seats on BA, PHX-LHR on 9/9/12.
This tool shows available 2 seats in F; 2 seats in J.
I was excited, as BA.com shows no availability.
So I checked Award Nexus -- no availability.
So I called BA -- no availability.
First day that BA shows availability is 9/13, which is what I can see on ba.com and was confirmed by the agent.