Weekend has a reputation of being a great club, but I feel that the reputation is mostly hype. Besides the rooftop terrace (will go into this later) the club is tiny. Drinks and entry fee are very expensive for Berlin and the whole experience feels lack luster for the amount of hype and money revolving around the place.
The roof top terrace, which is only open when the weather permits, is amazing. The atmosphere up there is more lounge-like and it succeeds. Instead of being a club that is too small and too cramp, you have a nice spacious terrace where people can sit and talk with a DJ playing right next to the bar.
I will admit that the club has an amazing view of Alexanderplatz and that the club attracts many top DJs. The only thing is, if I had to chose between seeing a big DJ at Weekend or any other big club in Berlin, i would chose the latter. Weekend is too small, too expensive and the crowd there is just there because of the hype.
All in all, I would only come here if I was a big fan of the DJ and if the rooftop terrace was open.