this apartment was amazing. four levels will keep your calves in tip top shape, and if they're not, you will be sore after your trip! but in a good way. very unique space, not completely toddler friendly, but we managed. make sure you keep lights on at night so you don't fall down the stairs. the one step down near the entrance in the foyer was especially tricky. also had some issues with the sticky terrace glass door, but we got used to it. hidden streets, where a lot of ubers didn't know existed and one even tried to drive down to the end. a lot of uphills in porto and the stairs down to the douro river waterfront numbered about 70 steps, so you will get a workout. the elevator up from the waterfront is fairly pricey, about 2.25 or 2.50 euro for adults. found some great pastelarias at the top of the hill where we got our pastries and coffee. views from the terrace are out of this world. the alley/street is very quaint and cute. we walked everywhere from here , but be prepared for the hills. dual washer/dryer was great. the utensils are hidden on the outside of the kitchen counter, and the mac computer was an added benefit. the al-fresco bathroom and shower on the 4th floor are great. the mid century modern furniture will please the eames fans out there. the main bathroom is as large as many studio apartments in the US.