Me and my bestfriend, we stayed in Mariyka's house and it was very good and clean. There is wifi in her house. At first we couldn't find the adress (Maybe during an hour we searched and walked around), but she waited for us! Untill 23.00 she waited and didn't sleep for us. She was very kind, friendly and her hospitality was very good. She can't speak English but it's ok :) Her house is a bit far away from city center but the metro station is 1 min. from house! So I recommend her!
Thanks Mariyka :)