After all these years game still is fresh and gameplay is really pleasing.
I expected achievements to be much harder from what i heard but it was fun and a bit challenging.
All time classic 10/10.

The cake is a lie! Screw you, Glados! >:O

After buying Portal I did something unforgivable. Backlog. I don't even know why - I didn't have any bias towards it, I just would rather play something... Different.
So imagine my surpise when I realised I am REALLY enjoying this game. I loved snarky android comments, puzzles were really simple (they could be a little more difficult), but they were a perfect mix of logic (but I wish that the difficulty of puzzles was higher) and gameplay, which is shooting and parkour. Oh and I absolutely vibed to end credits song.
It's a pretty short game, however you can squeze every inch of it by doing achievements or at least trying yourself at challenges.
As for achievements, they were alright - most of them were easy, however some people might struggle to get gold medals, but with a little practise (and maybe a tutorial) everything is achieveable.
Overall, I have enjoyed my portal experience and together with my lover we're going straight to Portal 2.