Helen's son Chris was there to let us in, and he was great. The apartment is really lovely, everything was clean, and he and his mother have prepared an incredible amount of information for any visitors to Edinburgh. Their apartment is located in Old town, which makes seeing the various sights easy as pie. 5/5 stars, really.

They even provided a bunch of power adapters for US/other kinds of plugs, which was great. First place I've seen do that.