I like to thing hard while playing.
Well... My review:
I should have played Portal 1 first before playing the second part due to Portal 1 is far easer than the second. Furthemore, to be a 2007 game is very great. Grephics great (all maximum setting on my XPS L502), great sound. Very smart game for that time. In my opinion, I enjoyed further to play the game on console (PS3) more than PC, even though in PC looks far better.
It is not a long game. You can beat it in one sit if you want it. There are challenges maps after beating the game if you still have angre.
When I reviewed Portal 2, I couldnĀ“t tell if there was an improvend over previous installment. Now, I can tell that the improvements were well appreciate. Longer, smarter, and even funnier than the this one. Well, you have to consider that it was release 4 year later. The graphics department were improved but only on physics.
I do highly recommend to play both games.