I do not recommend staying with Steven.
The apartment itself was not that bad, but Steven was extremely unreasonable and I do not recommend working with him, whether you're booking this apartment for yourself or for your business.
-The AC in one of the bedrooms did not work. I understand things happen, so I notified Steven, who sent a technician, who basically said it can't be fixed right now.
-I requested Steven for a refund for one of the bedroom because we could not use it, and we thought that was fair instead of causing a ruckus with Airbnb. It was hot, and opening the windows made it too noisy to sleep in that bedroom. Not only did Steven decline any kind of refund, he had the audacity to send "damage" claims for things that were already broken in his apartment. His remote control was out of battery so we took it out for him to see, and he's sending that to us.
Honestly, the apartment itself was not that bad. Things happen, I understand, but when things go wrong, your customer service speaks volumes of you. There are plenty of awesome apartments in Porto with great hosts who are understanding and caring. Steven was not that for us at least, and while I hope he changes his style, all I can do for now is leave a review to let you know.