Daniela's space is great for group travelers. Plenty of beds, rooms and bathrooms for a comfortable stay and the location is amazing! You're a close enough walk to Praça do Comércio and delicious restaurants/bars, yet far enough from the rowdiness to get a peaceful night's rest. Be prepared to walk up hills to get to this apartment, as it's impossible to avoid in Lisbon, but the neighborhood is nice that you enjoy the hike (and your glutes will look phenomenal after a few days!).
Truly a great place for our work/tourist stay, and much cheaper than any hotel in the area for the number of colleagues we could fit privately in their own rooms. There are 5 truly private bedrooms and within 2 of those bedrooms, there is a shared/adjacent room with a twin size bed that can be closed off from each other for privacy.
Daniela was also super quick to respond and accommodating our travel schedules --just amazing. We will definitely be coming back again!