Pros: Among the least expensive hotel options in Stockholm, but perfectly safe, comfortable, and functional. Located in a quiet neighborhood with a locals-only vibe. Several restaurants in walking distance along the nearby waterway, with scenic views and good walking/running options. Supermarket right next door. Tram stop right in front. Staff are helpful and friendly, and probably speak better English than some of my compatriots.
Cons: Some may find the rooms on the small side, but this isn't a deal-breaker. City center is not far away, but you can't easily walk it (best to take the tram in front the hotel for 1 stop, then switch to the subway for 4-5 more stops and you are in the middle of the action.)