Soho's always been a bit bittersweet -- its sex and drugs being the latter, and your feelings towards the idiots who over-consume them the former -- but now it's official, as the folks behind Dirty Martini bring their 'tail-shaking prowess to... BitterSweet, housed in the underground space that once hosted Kingly Club, and before that 1960s celebrity glam-cavern Pinstripe Club. A strong roster of classics rounds out house creations like the dueling tequilas and schnapps of Cafe du Peche, an orange bitters & Mandarine Napoleon number unsurprisingly served short, and a passionfruit-chilli-gin combo named The Affair, referring to this being the very spot where Russian spy mistress Christine Keeler seduced the Minister of War into whispering sweet nothings/military secrets in her ear, while Oliver Reed unfortunately took the night off from head-butting people. It is a members club, but during their launch membership's not only completely free (just punch in your deets at the bottom here), but will also net you benefits like free cocktails-of-the-month, priority booking, and "birthday treats". There's also a half-price happy hour every weeknight 'til 10 -- just try to control yourself, or you too will become "the former".