Nice apartment, perfectly central location! It's right in the middle of the walking streets of Baixa with lots of restaurants. Be aware that it may be noisy during the day and evening due to construction sites nearby and restaurants up and down the road. It is still very quiet at night time.
The apartment is nicely equipped, including all the stuff in the ad such as washer/dryer, coffee machine etc.
This is a commercially/professionally let apartment, which means as a guest you're flexible and free, but it's not a homestay experience.