Love this thread!
Like in Paris, a good club lounge in London seems to be worth it, IMO.
Are there are other nice hotels besides the Langham and IC Park Lane I should be looking at for an August trip? I have only been to London twice and stayed over in Kensington at the Hotel Indigo but finances are a bit better now.
(May even consider the Berkeley with the nice 4th night free rate and rooftop pool (no lounge, I know....).