Clean lines suit Karolina. She is 174 cm and slim, her black hair long, straight and usually pulled back low, and she wears minimalist glamour better than most: a black column dress, a tailored coat without a visible button, one pair of good earrings. Her brown eyes are steady and amused. She is in her late twenties, and she moves through a hotel lobby with the calm of a regular, whether or not she has ever set foot inside.
Discretion comes naturally, which matters to the travellers who book her. She is poised in formal company and witty in private, with a dry line ready for any business dinner that runs a course too long. Piano is her lifelong practice, opera the indulgence she saves up for, and architecture walks the way she learns a city. English is the language she hosts in, precise and easy, and she has a talent for asking the one question that proves she was listening.
In W2 she starts with the building you arrived in. Paddington's great roof, with its wrought iron arches, is her favourite ceiling in London, and she will walk you from the platforms to the Rolling Bridge at Merchant Square in about seven minutes, explaining why a bridge that curls itself into an octagon is either genius or showing off. Then on to Leinster Gardens, where two grand house fronts are only facades hiding the railway beneath, before dinner at a quiet table and an early nightcap.
Karolina meets arrivals at the hotels around Paddington Station and on the park side beyond. From Covent Garden allow her about twenty five minutes; send the desk your train or flight time and she will plan the evening around it.