The whole process was good at first, not a long time passed between next interview stages.
Everybody was friendly and whole process was quite clear, especially during technical talks.
The not nice thing was after technical interview - we agreed on a date for them returning with a decision (end of the week) and I haven't heard from them.
After 2-3 weeks I got a phone call from them saying that they actually wanted to hire me but something happened internally and they stopped recruiting for that particular team. I have received a proposal to participate in the whole recruitment process from the beginning because it was for another team.
I was supposed to get a call next day but received it after ~2 weeks and said "no" since it was not first time they did not keep respect agreed time.