The particular room we had at the Posada del Sol, with its own plunge pool, clear view of the sea, and a strong breeze day and night, was perfect. Every member of the staff was friendly and competent.
The Posada’s location was great: it’s in the first cluster of restaurants, boutique hotels, specialty shops, and convenient stores in Tulum’s beach hotel zone. And, by the way, at least in February, 2023, a taxi into Tulum town was only about $17, not the $25 we had been led to expect.
As we had been warned, the seaweed made the ocean unattractive for swimming for us (but not to others), but it did not interfere with beach sunbathing.
In short, La Posada del Sol is wonderful.