We had a wonderful 3-night stay at Tiffiney's in San Diego. Check-in and out was easy, and the accommodation was super quiet, clean and comfortable, and so well-situated that we were able to pack in a huge amount in the short time available: the truly world-class Zoo, the amazing USS Midway, the sea-lions at La Jolla, tea at Hotel del Coronado, a walk in Balboa Park, ice cream at Ghirardelli's in the Gaslight District, the quaint Old Town - and all on public transport using a 4-day pass (ok, we had to cheat to reach Mt Soledad). All well-worth repeating at a more relaxed pace, and if we do, we'd have no hesitation in returning to "the treehouse".