The choice of an upmarket location for its first UK foray is hardly surprising: the 60 US branches of the club, in cities including LA, Chicago, Miami and Washington DC, and the 20 in New York, are all in prime property hotspots and have garnered an impressive celebrity clientele, including P Diddy, Natalie Portman and Gerard Butler. The brand is even endorsed by President Obama, who used numerous Equinox branches to work out in while campaigning for the last election. A friend of mine regularly reports seeing Homeland’s Claire Danes, and her current rival for the Emmy award, The Good Wife’s Julianna Margulies, perspiring competitively at the SoHo branch, but when I pop down at peak time, after work on a Monday, I can’t spot any celebs, apart from a man in a bandana doing something fiendish with a medicine ball, who may or may not be Will Ferrell.