Like any big city it has its nice parts and not so nice parts. I used to have to travel to San Fran regularly, 4-6 times a year, though I no longer do and haven’t been there in about four years. The situation in San Fran got noticably worse over the 2012-2016 time frame where the businesses and tourists were.
Portland was a city I didn’t frequent too often but was there every now and then. Another really cool city that has managed itself downward. The last time I was there in 2016 was noticeably different. I got hit up by panhandlers almost every block. I forgot what the policy was but they were encouraging the homeless to set up camp in the city. Outside Portland was still beautiful. My company actually moved their office from downtown to the burbs because the employees didn’t feel safe.