Lovely room, with a beautiful view. The added binoculars to watch shipping was a great touch. There were some problems around check-in (not Bon Ami's fault) and Nicci was fantastic in sorting them out (do contact them direct if you haven't heard back from them via Expedia).
On street parking can be tricky. There is a car park nearby, but you will probably have to pay unless you're in and out between 8pm-8am. The streets change names, so make sure you have the right building. I managed to go to the wrong house, despite Bon Ami having a lovely big sign outside.
The guest house itself is lovely. An easy walk from shops and take-aways, fantastic views. Room was thoughtfully laid out, clean, and extremely comfortable. Would definitely recommend.