This apartment is not located very close to the city centre (around 20-30 minute walk to the central station) but there are plenty of transport route available to get you there faster if you don’t wish to walk. The apartment itself is very clean with multiple beds for larger groups, as well as amenities, such as a table tennis table and a pool table.
Check-in and check-out was easy, and communication was quick.
Overall, I would definitely recommend this apartment for a larger group visiting Amsterdam.