If this hotel happens to be available at a price c...

If this hotel happens to be available at a price close to other hotels in the area -- Union Square or Downtown San Francisco, grab it. Unlike older hotels that claim to be three and a half or four star on Tripadvisor, Expedia, and similar sites, Parc 55 is a modern, clean, and gem of a building. It is well located, being one block from Bart, Muni, and the Powell Street Streetcar line. It is right near Union Street shopping -- and clean and well maintained. If the Westin St. Francis (which is one block away) is available at the same price, I would chose that, but if you look, you will see that this place is usually well below that in cost. This is just a superior hotel at a great price.