Side by side The Emory vs Four Seasons Hotel London at Park Lane

The Emory is Maybourne's one real departure from the Claridge's/Connaught script: Richard Rogers' glass box across from Hyde Park, 61 keys, all-suite, barely a lobby, sharing a spa and rooftop with The Berkeley next door. Rooms opened around £1,600 a night and the entry Courtyard Studios still sit near that, which buys floor-to-ceiling glass, a stocked-free minibar, a Cédric Grolet pastry on arrival, and Surrenne downstairs. The Tracy Anderson studio and the snow shower come up before anything else, and one guest who stayed five months called it the best spa experience of a very long trip.

This isn't a hotel that performs the same on night one as it does on night five. That same long-stay guest tracked their own housekeeping scores and found mornings ran measurably better than afternoons, and said outright that a one or two-night stay is too small a sample to judge the place fairly. Shorter stays back that up: a slow check-in, no manager on hand when something goes wrong, a "suite" facing a neighbouring building with the curtains stuck shut for lack of any view. The website oversells too: the welcome champagne, the unpacking service, the non-alcoholic beer add-on don't always show up as promised, which reads less like malice than a property still smoothing its edges two years in. A few guests have also flagged there's no concierge on-site for basics like booking a car, so you're sent next door to The Berkeley.

Book it for the design, the spa, and the quiet if you can give it three nights or more and shrug off an off moment; it isn't built for a single-night stopover. Give it three nights and the butlers, the glass, and Surrenne make the case themselves.

This is the hotel that put Four Seasons on the map outside North America, opened in 1970 as the Inn on the Park, and it still runs on the idea that comfort beats opulence. You're not paying for a jaw-dropping lobby. You're paying for a quiet street two minutes from Hyde Park, blackout curtains that actually work, and a staff that remembers your coffee order and your kid's name by the second morning. The location alone, tucked between Hyde Park and Green Park with Knightsbridge and Mayfair in walking distance, is hard to beat in this city.

The building itself splits opinion. Some love the residential warmth; others find the 1970s exterior flat and the renovated rooms oddly designed, with a doorless closet and a single light switch shared between the bathroom and the dressing area that means a 3am trip lights up the whole room. Breakfast is the other place it slips: the tasting menu at Pavyllon gets people genuinely excited, but the standard a la carte breakfast has produced repeated billing confusion, and one family's confirmed gluten-free order still arrived as regular bread, cold, on a birthday. Ask for a park-facing room; the rear rooms look onto a car park, not greenery.

Book it if you want London handled quietly and well: a hotel that solves jet lag and looks after kids without turning the stay into a production. Skip it if you're chasing the kind of history and drama you get at Claridge's or the Dorchester down the road, both of which trade some of this warmth for a grander sense of occasion. For a family wanting Hyde Park on foot and a bed that actually works after a long flight, this is still the one to book.