Tiny apartments that looked nothing like the pictures (we stayed in Old Tolbooth Wynd). Bed wasn't even long enough to sleep comfortably in, let alone wide enough for two people. Utterly disappointing, and luckily we only spent one night there.
Could also have wished for better information about reception not being open 24/h.
Staff was very friendly prior to the stay, and pick-up of keys went pretty smoothly, although location from our apartments was 10+ mins walk.