Apologies in advance for asking but I can only find some information that looks to be quite out of date. We'll be departing BRU-LHR on BA and we're BAEC Gold/OW Emerald. As far as I can make out, the only lounge available to us is the Diamond Lounge located at Pier B. There appear to be others such as the Loft and The Suite but access looks to be restricted to specific OW airlines and not to BA. Is this correct and if so, is the Diamond Lounge our only option and is it any good? Thank you in advance for your collective wisdom