We have visited both the consuls apartment and the sea apartment. All rooms are nicely decorated and fresh. They are also very clean and functional for a 4-persons visit. The sea apartment gets a bit loud at times due to the passing traffic on the main street of Portbou, the consuls is a bit quieter, although LA Rambla has some restaurants and bars that work until 11 pm.
We didn't meet Edgar but his mom Angels was very helpful and organized everything we needed, was all the time accessible (in another apartment in the same building) and gave us a lot of clues for our sightseeing plans in the neighborhood and Girona and Barcelona onwards.
The city of Portbou is rather small and moderately busy during summer time. There can be difficulties to find a spot to park the car but you can always use a cheap 3€/day organized car park just 200 m away. There is a nice complex of 3 consecutive beaches in the bay of Portbou, the last one can be more difficult to get to with small kids or lots of equipment. All of them very nice, also very interesting for snorkeling. The thing to consider, which we just learned on site, is that the winds in the area are not uncommon and quite strong at times, from the northern direction. This on one hand means the sun doesn't burn that much, but on the other beach umbrellas won't work as they will easily fly. If you get bored with the local beaches, you can drive to some of the nearby cities or bays. The closest sand beach is in the city of Roses, 45 min drive.
Summarizing, we are very happy with the visit, the apartments and the host. Thanks Angels and Edgar!