We were a group my sons (18 and 21), my in-laws (70s), and my husband and me. We absolutely loved Leiden and this house was in the most convenient and lovely spot.
The house is well appointed and has everything one needs. It is next to a grocery store and just minutes by walking to canals, great restaurants, and shopping.
Leiden is an incredibly clean and friendly college town and I have since been recommending to all of my friends to visit. My sons had a great time walking late at night, and I never felt that they were unsafe in any way.
The only thing to note is that there is just one bathroom and only two bedrooms, but we managed just fine. The owner was just fabulous. We will definitely recommend this apartment and will go back!