Location was close to the festival. Also close to a mall. My only hiccup during checkin was how slow and annoying the self-checkin was; tablets you had to push hard, and sooo many steps, plus of like 6 tablets only two worked for checkin :(
Other than that: bed was amazing, bathroom was nice and clean, cute little kitchen, big cold refrigerator/freezer. Needed help gettint a code since I booked via Hotels.com so I didn't get a message prior to arrival. But the lady was so nice and welcoming. Would definitely stay there again. Didn't buy the breakfast. Good value for the price. My first time in Helsinki too. Felt safe aswell as a solo traveller. :)