My wife and I had free seats (using miles) in WT+ this May PHL-LHR-TLV These were later OpUp to business class (without asking) by the LHR gate agent.^
Last month I booked PHL-LHR-TLV and WT+ and MFU to business class for February 2008 without any trouble. I had to book the BA164 flight back instead of the BA165 flight I usually take. But then I was staying over in London one night anyway and I'm flexible.