Recent reviews by Aquonn

Pros:
- Decent collection of puzzles
- Very fun 'mono-blue' Portal Gun puzzles.
- Very good Portal-like music
- Stronger engine than Portal 2
- Friendly support staff
- Completely free to owners of Portal 2

Cons:
- Late-game new mechanics introduced are not utilised to full extent (presumably out of danger to confusing experienced players), leading to an inverse difficulty scale
- With no offence intended, the voice actor for Stirling, while arguably succeeding in what I believe to be the intended reaction (which is to say, annoying), was quite difficult to listen to for large portions of the game
- Plot ultimately doesn't go anywhere, entirely filler
- Somewhat buggy

Conclusion:
The game is a pretty solid Portal 2-like experience providing all the necessary staples and game play experiences you would have found in Portal 2, for completely free. While not perfect, nitpicking at a literal free experience that gave me a decently fun time I feel would be uncouth. For any Portal fan, unless you are absolutely unwilling to let slide a few hiccups here and there, play Portal: Revolution.

Final Score: 8/10