It good but not great, nice 7 hours if you have a few spare bucks, just don't expect Portal.

User Rating: 7.5 | Quantum Conundrum PC
I think 7.5 is a good score, it may not be Portal, the dialog is good but not great, and the puzzling is fun but not tremendous. But its still a nice little game to eat up 6-8 hours. The platforming wasn't to annoying for me, but it was a little fustrating in later levels.

Good: Original puzzling element
Fun gameplay
Some good dialog
Unique and memorable experience


Bad: Some levels have deign flaws: I found number of areas where you can get permanently stuck, doors that closed while still letting BOT BOTS through, a couple of puzzles have a few ways to cheat and unintended solutions.

There was a glitch in one puzzle causing the IDS batteries to spawn incorrectly, making the puzzle impossible and forcing you to restart the entire chapter

Sequal-setup ending that left em rather disappointed.

Conclusion: If you have a spare 15 bucks you'd be a fool not to buy, and will be a fun ride. Just don't expect miracles from it and try not to break it.


Edited Note: Alot of people compare this to Portal, yes they are both silent protagonist first-person puzzlers with a mysterious and funny voice over, and yes, they are both fond of 'cube-and-button' testing but they are still different games with different puzzle devices, and 'If you like Portal you'll like this' is more of a guideline, and not a rule