My husband and I stayed here a month during our visit to Lisbon. The location is perfection, right in the heart of Lisbon so the perfect launching off point to explore. Yes it is a bit noisy with popular restaurants right at the foot of your door, but it dies down just in time for bed. The apartment has everything you need to cook a quick meal, put away all your clothes/ do laundry, a change of bedsheets, and just to relax at the end of the day.
This place is great if you're just wanting to be touristy and explore your grounds. However, both my husband and I are working remotely and doing this digital nomad life. For that, hm, maybe less so. I think everyone in the building works off of ONE wifi router which makes the internet painfully slow, much less taking video calls that I have to do. We found a coworking space nearby (The Base, go check it out it's awesome and super flexible) so we can actually get some work done or had to hotspot. Just something to keep in mind for all the other digital nomads out there.
No AC, but not needed really. There were a few warm nights, but for the most part, the cross breezes from keeping the windows open feels glorious so sleep. They also have a fan too that helped out! It bit toasty during the day, but we just tried not to move a lot haha.
Overall, great place to stay, especially if it's your first time in Lisbon!