Small Luxury Hotels of the World is a group of 520 independent, mid-size, boutique hotels that span more than 90 countries. They are generally well regarded. There is a new Amex Offer for stays at hotel within the SLH portfolio that will give $60 back for $300+ in spend, which is a nice incentive to explore some lovely places.
Small Luxury Hotels of the World is a marketing organization that represents 520 hotels around the world. Some of the hotels within the group are within other groups, like Hotel Palacio de Villapanes, where I recently stayed.
When I first saw this offer, I was very excited because Hyatt and SLH have some very good benefits.
It is necessary to book through Hyatt in order to receive the benefits and stay credit associated with the Hyatt partnership. I don't think these booking will be eligible for Hyatt benefits. Adding your Hyatt number to the reservation is worth it as some properties will honor Hyatt perks.
Over the past couple of years, the team has stayed at several hotels. You can check out the reviews here.