The George V costs what a palace hotel in the eighth costs, and for that money most people who actually check in get exactly what they came for: a newly renovated room with a Dyson dryer and blackout shades good enough to fix your jet lag, flower arrangements that turn up in almost every account without being asked about, and a restaurant floor (Le Cinq, L'Orangerie, the bar) that people describe as a destination rather than something you wander into because you're already staying there. The renovated rooms are the headline right now: guests who'd stayed before the refit say the difference is real, not cosmetic.
The staff stories from actual guests are specific in a way that's hard to manufacture: a family with young jet-lagged kids got handed a spare room before they had to ask, a full breakfast room got solved by opening L'Orangerie instead of making people wait, a regular has a standing hairdresser she won't see anyone else. That's the level this hotel is operating at for people who are checked in. Where it gets complicated is anyone treating the George V as a drop-in for tea or a restaurant booking without a room key – there's a real thread of visitors, not just one, describing a cold or condescending welcome at the door, and a separate, messier story about a guest whose negative review of that experience got pulled from a review site after the hotel disputed it. Neither of those things describes what happens once you're actually a guest, but they're worth knowing before you book a table rather than a room.
If you're staying, book it for the location and the renovated rooms, and go into dinner at Le Cinq expecting it to earn its reputation rather than coast on it.