So here ends the wait! It released on 29th and I watched it on 30th December.
First of all I am a bit disappointed because my expectations haven't satisfied that much!
I was expecting a spine-chillig story and suspense like in Money Heist but I haven't got that same feeling through Berlin.
Second the love & affairs are to much extended which disconnect the flow of story, no such need of having at least one love story or affair in every season with every person, that's my biggest disappointment.
Overall its 2.5/5. A one time watch!