The room was small but we booked a small double so fair enough. However, the so called 'double' bed was small and felt more like a temporary bed, with thin bedding and the sheet wasn't even big enough to cover it properly. TV picture quality was grainy so I wouldn't bother wasting money on paid for films. The walls are so thin that we were forced to listen to the neighbouring room's nocturnal activities which was really annoying. Cleanliness was just about passable.
There was free access to sauna and pool on the night we arrived which s a plus although we didn't go as didn't have swimwear. Free wired wifi, the wireless connection was very cheap at €1.5/12 hours and €2.5/24 hours. The breakfast had a good selection of cooked and cold items.
Overall, overpriced at around £85 per night but the hotels in Mikkeli seem all quite expensive.