Reviews are correct when they say this location is great. The street itself has a number of restaurants and cafes to enjoy, and is very near to (but not close enough to be bothered by) raucous party streets. And, naturally, it’s close to the main drag in Bairro Alto, Chiado, etc. Area felt very safe at all hours.
Reviews that mention a smell are correct, but this shouldn’t be a dealbreaker and is unavoidable in older buildings in Lisbon.