Enjoyed our stay with SweetInn. The apartment was exactly what you see online. It was clean and modern. Two bedrooms + a sofa bed.
Location was great: next to Brussels Central (train station and metro) and 5 minutes walk to Grand Place + Sablon. Close to restaurants, bars, etc.
Check in was all digital. Super easy.
We stayed for 3 weeks, SweetInn arranged for a cleaner to come twice.
Overall a positive experience.