Lovely apartment in a convenient (but quiet) part of town! the apartment is 350m from the closest metro stop, there are e-scooters available next to the metro as well. the views are great from the park and bridge down the road and there are loads of nice restaurants and cafe's nearby. Felt super-safe as well (we were out late at night most nights and it was fine).
The apartment itself is up one flight of stairs, is clean, tidy and comfortable. the beds in particular were really comfortable! the kitchen has everything you might need and there are loads of wine glasses etc. as well! Rooms are all separate from each other so you can't hear each other when in your respective rooms! Pedro was extremely helpful and even let us keep our luggage in the apartment on checkout day as there were no other guests coming in that day, just the (very friendly) cleaning staff!
Only slight criticism is that for the length of our stay we would have liked some extra towels but if we had contacted Pedro about this (which we didn't) I'm sure he would have helped us out with this!
Air-con worked and the hot water was good - not the biggest tank but we got on fine with 6 adults all showering at similar times in the mornings - no freezing cold showers or anything - very standard for an apartment though so didn't bother us at all.... Will be staying here for future trips also! - Don't be put off that it's in Gaia not Porto either; it's so easy to get around and is just over the bridge!