TL;DR: 100% recommended.
Staying at Oleg's has been one of the best Airbnb experiences I've had.
Check-in was easy and straightforward. The location doesn't get much better, being just three minutes away from Old Town Square, and, thus, it's surrounded by restaurants, bars and lots of things to see.
The apartment is perfect for three people. Simply but nicely decorated, it has everything you could need.
Oleg offered every piece of information i could need: from getting to the apartment, check in/out info, places to eat/shop to where to exchange currency. Plus, he was reachable all the time.