In general a very good place for a citytrip to Stockholm. As others say, it is a bit far away from the city center, but public transport and citybikes are just around the corner. On the other hand, we hardly used those, we just went by foot. Stockholm ain't the size of Paris or New York, so its doable, and good for your health.
The apartments were very roomy and very clean. The kitchen was satisfyingly equipped, although I did miss some extra cutlery. Very comfortable beds too.
Staff was very helpful, patient and friendly at all times.