Very poor service. I booked a seat on their 21 December 2013 Flight No.OG112 from Donetsk to Kiev on 10 December (4 days ago).
Just received a two line email from them this morning stating that the flight has been cancelled for 'commercial reasons'.
I'm not impressed, as they state in the email I have to contact their Ukraine call centre, from the UK, to chase a refund - what a pain!
I certainly won't be booking anymore flights with this airline in the future.
Used this airline in September 2012 from Kiev to Simferopol, return ticket. Very friendly ground and on board staff, both flights were on time, good choice of snacks and drinks ( all free ). Equipment ( 737-500 ) was in a good condition, have used other Ukraine airlines, this one is the best at present. Hope they will continue this way.
A frequent traveller from Germany