This game is one of the best games I've ever played.
The first thing I should mention is the story. It's unique, involving and keeps you wondering what's going to happen next. The prince is tricked by the vizier and the he releases the sands of time (without knowing the danger) thus turning almost everybody in the castle into sand monsters. The prince is even forced to fight for his life, fighting all sand monsters he even kills his father. The story is pretty good and it has some twists which even I didn't see coming. I you want to know more about the story you should go and play the game I promise you won't be disappointed.
The environments are varied and they all look awesome. With the environments comes the great acrobatics. You will do wall runs, swing on polls, climb all kinds of platforms and whatnot. With this comes death because at first some of them are not easy but the prince is wielding the dagger of time and this allows him to rewind time and he can also slow it down. All this makes for great experience and pretty enjoyable playthrough. The level are imaginative and enjoyable.
Along the way you will meet Farah. She is one of my favourite game character because she acts like a real person and there's a chemistry between her and the prince. Their conversations are enjoyable and memorable. You will help each other along the way but you encounter enemies you need to protect her at all costs. This leads me to one of the few problems in this game. The combat is repetitive and gets boring after a while. Another thing is that the game is too short. I've collected all life upgrades on my second play-through and I finished it in 7 hours. The game is not difficult but there are pretty good puzzles for you to solve which makes the game experience even better. You will appreciate the power to rewind time near the end of the game when you have to make some climbing, jumping, ect. without the dagger of time.
In summary the game is awesome with few flaws and the great story, great characters, great gameplay mechanics, great puzzles and great environments more than makes up for the flaws. I have a tradition to play the whole trilogy every 4-6 months. Prince of Persia all the way!