I love a number of Hyatt properties and I think that, discounting there smaller presence, they're one of the best hotel chains. There loyalty program is a bit wonky (everything below the top tier is essentially worthless, and the top tier is extremely difficult to achieve considering there footprint), although the award chart is by far the most generous and useful. I'm genuinely surprised they haven't attempted to poach disgruntled members from this merger. On the other hand, while Hyatt does have some amazing properties (Miraval comes to mind), it's hard to compare there top end, to Marriott's. St Regis and the Ritz are generally better situated, nicer, and in more locations.