The location of this Airbnb is perfect! It is a few blocks away from an area with lots of delicious restaurants and bars, and it's a quick walk to the city center. There are also a lot of grocery stores nearby. Even though it is close to the busy/ loud areas, it is just far enough that the noise from those blocks do not reach it. Just be aware that this area is extremely steep. Your legs will get a thorough workout. The train stations are about a 7-12 minute walk away depending on if you are going to the Baixa train station (5-7mins) or the Rossio station (10-12mins).
The apartment is incredibly spacious and beautiful! There are many areas to relax and take time to yourself. It also gets a lot of sunlight. You will not feel cramped in there at all!
The wifi is unfortunately very spotty. There were times where I just could not use it at all, and I had a friend that was doing remote work that had difficulty with this.
The airbnb is also not very clean and the plumbing wasn't great. There are sticky spots on the dining table rug, the floor left marks on our feet/ socks (despite always leaving our shoes by the door), and there were some utensils that were dirty/sticky in the drawers. Some of the bathroom's plumbing didn't drain well.
I didn't really reach out to the host (which is my fault), so I'm not sure if some of these problems would have been fixed, but it also should have been clean upon arrival. They did, however, reply back to my friend when she did the initial checkin very promptly.
Overall, it's an amazing place.. it just needs to be cleaned (and the dining table rug probably just needs to be replaced, if you can't remove all the dirty/sticky spots).