They were very good from a communication standpoint...I could follow their progress whenever I wanted. DOOK.pro was very responsive whenever we needed clarifications or wanted to give them detailed requirements.
DOOK.pro excels at understanding your taste and not just building the software you think you want, but building the software you really need. They don't just build software. They're your partner in your development project. That's a rare thing.
We had many different requirements and asked them to make different changes. They never refused us, and were highly professional, even when something was outside the scope of the contract.