Rossio Garden Hotel is a really nice place to stay in Lisbon. It is in the city center right next to a metro, but it is also really easy to just walk around the city. They have employees in the reception 24/7 which makes everything very easy regarding check-in, check-out and if you are unsure about something. We traveled during COVID-19 and were traveling to the Azores afterwards. We were a bit confused about the restrictions and the need for a PCR-test, but the employees at the hotel used a lot of time helping us understand the rules, filling out different travel-forms in Portuguese and calling a test-center, so we were able to get the test for free. We would highly recommend Rossio Garden Hotel.