Rosie's place is comfortable, within walking distance to Museum Quarter and as described. You are able to catch two trams (5 and 24) to Central Station which is really handy. It is also close to the airport which makes it overall very well located.
We stayed in the larger of the two rooms she has available. It has a shared bathroom which is clean and tidy. Please note, as is customary in dutch houses, there are a lot of stairs to the top!