I have just returned from a weekend in Amsterdam. There were 2 couples & we hired the studio appt & double room - both accessible by one door. Rooms were very clean with all amenities. Breakfast was left in the room the night before which we found particularly good as more often than not we miss it! Plus was nice not to rush to get to a dining room.
Location wise depends on what you want. If you want the hustle & bustle of Dam Sq then stay closer but we prefer to be a bit quieter. It had metro & tram stops close by but Amsterdam is so accessible you can walk everywhere. Guest house was about 10 mins walk to Rembrandt Sq & similar to De Pijp neighbourhood which is worth a visit. There were plenty of bars & restaurant nearby & supermarket round the corner. We stayed over a weekend so can't comment on noise from students but there is a campus directly opposite.
Communication with owner Joyce was great & we were able to check in immediately on arrival. Check out was 10am & they did offer to keep our bags but we left them at Central Station.
One tip don't bother with airport transfers, train to Central Station is so easy & cheap and then from the Station you can walk or get bus/ tram/ metro to where you need to go. Public transport is excellent.