Matin was really awesome! His relaxed, easy going manner would put you at ease. He's super quick to respond to your message. He's exceptional in communication and has diverse interest and knowledge. He is reliable and very friendly. His roommate Sergey is a super nice guy too and would be willing to help you with anything.
Martin offered me a ride to Slovakia while he is on a business trip; going to Slovakia was one of the best decision of this trip. It had an it's own old city charm and quaint beautify. I really appreciate him for giving me the opportunity to see this unexpected views.
Overall I had a good stay except a few glitches.
The guest room is facing the church clock tower which rings a bell every 15 min with patterns. (If it's 11pm, it rings one bell sound 4 times plus another bell sound 11 times). While the tower is beautiful and can be a landmark, if you're staying for a day or two only and not have enough time to be conditioned to it, you may feel bothered by it. Bring your ear plugs.
The windows in the room have no blackout night curtains or blinds. The natural light may wake you up in the morning when you need more sleep. Draping the window panels with linen sheets helps.
The shoe closet is very hard to open when it's closed as the door knob has broken. Don't close the shoe closet. If it's closed by another person, push one door hard so you can pull the other door with your finger pad.
Lastly, don't leave without your keys even when you're checking out. The first 2 doors in the building to the apt is locked overnight and you need a key to open from inside if you're getting out if you're the first one to get out. I got locked in when I was attempting to leave to airport without the keys. I had to yell to get attention (due to no wifi outside apt and my not having phone service). I woke the neighbors up and sweated over the thought of missing my flight before Sergey rescued me from my predicament.