Very good overall. Excellent location in Philly - close to everything (esp. museums) but excellent access to 676 for getting in/out of the City. Take advantage of their complimentary car service - an S-Series Mercedes beats a cab any day.
Rooms were very comfortable, we had a good view of the fountain. My two main complaints: 1) our room was loud - not from the hallway or outside traffic, but from the adjoining room, as if there were no sound-proofing. 2) the housekeeping missed a few things (like leaving a used wine glass hanging out for a couple days, not giving us hand towels).
Breakfast and valet parking included in our rate - was a great value overall.

I've been fortunate enough to stay at a number of Four Seasons and this one was the worst. This isn't to say it was a bad hotel; just that it isn't particularly impressive. I think this is because it was purchased by the Four Seasons as opposed to being built by them. I stayed here for three nights in November (apologies for the late posting of this review, but I was so underwhelmed by the stay I felt no desire to relive the experience through a review). The best thing about the hotel, and this is true of many of the Four Seasons properties, is the pool and fitness area. The pool is big enough to swim laps, the locker room is nicely appointed, and the fitness area is full of excellent equipment. My children and I had breakfast by the pool twice, and that was lovely. But otherwise there was nothing special about this hotel. The concierge was useless. I asked her about Barnes tickets and she was able to offer nothing beyond what was available on the website. Now I should make clear that it's only because I am used to Four Seasons' concierges working magic that I am offering up a critique here. There's no reason why a concierge should have tickets to a sold-out museum, but in my experience this is precisely the kind of thing they have at the Four Seasons, particularly when the museum is right across the street and the hotel website offers special packages featuring tickets to said museum. My room was nice, but standard in every way. The room and bathroom were both the same size you would find in a Hilton, and the decor no better. We did have a lovely view of the parkway. There were no late checkouts available on Sunday morning. And perhaps most annoyingly, a large, loud group was occupying the pool for most of one of the evenings we were there. I would say that the Omni is a nicer hotel, with equivalent or better service, and arguably a better location. And the Embassy Suites, across the street from the Four Seasons, is a better choice if you are traveling with children and don't need a pool. If you need a pool I would go with the Omni.

Conveniently located to attractions. Within walking distance of excelllent museums and wonderful restaurants.

Barnes Museeum, Philadelphia Museum of Art, Sceince Museum. Walk to all of them, or take the hotel car.

Lovely salt water pool and amazing whirlpool.Great staff

Excelleny experience.

We stayed at the Four Seasons in Philadelphia in February. What a family friendly hotel! They had robes for the children. Stuffed bears and a toy for each child. It was a very nice 3 day weekend. The staff is very friendly and helpful. I would recommend if you are planning a family visit to Philly.