I stayed 4 nights in mid Oct. It was quite cold in Porto, less than 10C at night. But there is NO hot shower water. I told one of the staff at the first night after shower, but she was not taking it seriously. They got more complaint at the second night, then finally called someone to fix it.
Besides the shower problem, the location is great. Just inside the train station and at the Center of Porto. And some staff were really nice, especially the gentleman at the front desk, who help to check and fix the shower problem nthusiastically