My wife and I just finished our trip to Spain/Portugal, staying in 5 different AirBnBs over the course of 17 nights. Here's how this one stacked up:
CHECKIN/CHECKOUT: Easy - Diogo met us at the apartment and showed us around. He had a bottle of wine and some other small gifts for us, which was very nice. I messaged him on WhatsApp and he stayed in communication with me throughout our stay. Checkout was easy as well: just leave the keys and go.
APARTMENT: This is a really cool apartment on the 5th floor with lots of great features and quirks. The balcony patio is very nice and although the view isn't great, it's wonderful to have somewhere to relax outside and drink some of that wine he gave us! It's a little small but due to the open layout it feels bigger and we were comfortable. One minor complaint is that there isn't enough lighting in the bathroom so I didn't even attempt to shave my face until our next stop.
SLEEPING: The air conditioner worked very well so the temperature was great to sleep. There are blackout curtains for all windows, including some that are custom Velcro that you attach/remove at your convenience. There are lots of windows so it's important to be able to keep it dark. The bed was extremely comfortable with one quirk: it's under a slanted part of the roof and at one side of the bed you can't really stand up...so if mobility is an issue at all, you might have a problem. Also, it can be fairly noisy late into the night. Despite being on the fifth floor, you can hear partying below. The street below as actually really neat with a funicular going up and down (not loud) and little bars where people buy drinks and sit out on the steps and drink/talk/party. If you like absolute silence at night, you will probably need earplugs. Personally, even though there was a lot of noise, it was relatively far away and I was able to sleep fine without my earplugs.
SHOWER: The shower itself is nice and the waterfall shower head should be great...but there just simply isn't enough water pressure to make it work. In fact, I think the waterfall design actually made it worse due to the low pressure. It's not horrible though - I'd call it average from my experience traveling in Europe - and maybe above average since it is spacious.
LOCATION: Noise issues aside, this is a great location. The party street below, funicular included, made it feel like a really cool/alive part of town...and we felt like it was safe. It was a short walk in any direction to the places we wanted to visit, with lots of shops and restaurants very close.
OVERALL: We really enjoyed our stay here. The shortcomings with the noise, shower, and bathroom lighting were definitely outweighed by the location, super comfortable bed, and the patio balcony!