Manuel is a great host! He provides tons of information about the best activities and restaurants around the apartment. He gives tons of insight into the culture in Seville. He's also quick to respond on chat. Check-in and check-out are easy if you follow the instructions. The apartment is smaller in reality than the photos indicate. It's difficult to take large suitcases into the bedrooms to unpack them. Note that the apartment has a few steps leading to the bedroom so make sure you can carry your baggage across. Also, the bathroom doors don't shut fully (there's something that gets in the way), so technically you can't shut it completely or lock the bathroom door. Apart from this, the apartment is spectacular: AC works great, kitchen is functional and fully stocked, water pressure and temperature is super (once you figure out the how to work the water heater).
Honestly, the icing on the cake was Manuel's hospitality. He is as incredibly welcoming and considerate.