Went out through LHR on Qatar Airways flight to MLE via DOH a couple of weeks ago. Having read about the re-development of T3 in pprune, I decided to pay £31 for access to the servisair lounge for me and Mrs Uffers.
Seems like seating in T3 has been sacrificed in the name of 'merchantising opportunities' i.e. more shops!!
Went up to the lounge, turned out it's the new 'quiet seating area' ( the Servisair lounge had moved) it had about 6 people in it compared to about 6,000 downstairs. So top tip peeps, if you're going through T3, make your way upstairs to the 'quiet seating area' and save yourselves over £15 each. Bargain.