Yes. This is one of the best episodes in the history of Star Trek in my opinion. It packed so much into 45 minutes. The music that played when they show the Enterprise and the cube at full stop just staring at each is perfect. It also contains what I consider to be the best Q/Picard exchange we would ever see.
There is so much great dialogue in this one. LaForge/Gomez, Picard/Q and finally the ending containing the chess game with Picard/Guinan. Great television.