Calum's apartment was the ideal base for my week in Portobello. Traffic problems meant I arrived late and so I didn't meet Calum in person. However, the key safe at the apartment meant I could easily let myself in (very straightforward to use).
The apartment is just as it looks in the photos...light and tastefully decorated with everything you might need for your stay. I also found it very quiet which was a bonus.
Portobello has lots to offer...the beach (obviously!)...interesting shops (don't miss the Velvet Easel Gallery in the High St)...and plenty of bars/coffee shops/restaurants (I particularly enjoyed The Espy, Butternut Squash, The Foresters Guild and the Italian ice cream shop in Brighton Place).
Edinburgh is an easy bus ride away...takes about 25 mins and there are plenty of buses.
Communication with Calum was pleasant and easy and I appreciated the clear instructions he provided about the apartment.
If I'm in Portobello again I wouldn't think of staying anywhere else.