I will NOT recommend this airbnb. I'd advise that you do not book this and read my review (you can also see my review history that has been extemely positive for many of the over 20 bookings we've made).
On our arrival day we sent a message asking for the check - in details including entry keys or code. We were told no - it's only given out on the day of check in. After our reply that IT IS our check in day, they re-checked their information and said it would be sent at 4pm (check in time). We asked for this information earlier than 4pm (while we had wifi), and after a few hours they did send it. We didn't arrive until after the posted check in time anyway. The location of the apartment is the one thing that I cannot complain about, close to restaurants and fairly walkable to some sights and the train station. We dropped our luggage and headed out to dinner, and then began two full days of touring Porto. It was a wet and rainy day that we arrived and the overwhelming musty odour was strong when we opened the main building door (the floor was wet in areas the entire duration of our stay).
It was the second full day that was nice enough to open the large windows/doors to the balcony. That's when we noticed some areas of black mould. I contacted Lovely Stay immediately via message and send photos of the mould (along the stone casement inside the apartment, and along the wood floor). I asked what they would be able to do during our stay which was Easter week (and incredibly busy in Porto). I was told they could do nothing. NOTHING. After a few messages they said we could cancel our stay, move out immediately and then ask Airbnb if they could help us. While it may seem reasonable to order us to leave, a cursory look at availability during Easter week was that there wasn't anything available. Out of the 255 units that Lovely Stay manages they had NOTHING to suggest.
After we realized resolution was clearly not going to happen, I reached out to Airbnb. We weren't able to connect by phone (due to time change and our touring schedule) until we had checked out of the unit. I will give Airbnb credit for working to some resolution after the fact. We were offered a 50% refund, and a small coupon to use on a future rental. We were told in future that mould qualifies as an emergency (I hope I can add photos, because the mould growth was quite significant), that we reach out to their emergency line by phone and they will immediately assist in alternate accommodation. We were also told that the listing would be canceled until remediation had taken place.
The way Lovely Stay responded to our concerns was unacceptable. Their check in process, also unacceptable.
As an aside they note that shampoo, soap, toilet paper are included. The shampoo and body wash are watered down, and 2 tiny toilet rolls (we had to get our own - first time ever in an airbnb).
**since I can't add photos to the review, you can trust me, the mould growth at the windows/doors to the balcony had to have been there weeks (not days). The mould was "growing" into the wood floors" about a 1/4" conservatively (but visually easy to see when looking closely at it). The growth on the stone extended all the way to the top at at least 1" -1.5" in width (most of the mould was in the lower 3 ft (height). Mould is toxic. We thought at minimum the host should have come in and used plastic barrier to tape off the windows/doors. It is absolutely clear that the housekeepers ignored this mould and failed to properly remediate it or report it for further action.