We spent a couple of nights in the annex, you might love the decor or not...it's a matter of taste... We thought it was good fun and charming ;)
But the service, location comfort are definitely great!! The annex is not luxury accommodation, but of a very good standard for the price we paid.
We had a nice time, and we regret not spending one or two night more... The island is bigger than we anticipated! Renting a bike is great fun and very safe as there are bike lanes on most parts of the island.