It's a very nice concept, gameplay wise at least. I haven't had any of the issues with interface or whatever that other people seem to be having. Perhaps It's just my choice of browser.
However, as shinobody mentioned, some of the logical assumptions made are slightly dodgy, and the plot was lacking a little. however, as is proved with the little code bit at the end, at least in the context of a game it doesn't really matter what the facts are, so long as for gameplay purposes you are aware that A is definitely A, and B is definitely B.
It would've been nicer if it had been a little longer, and if the puzzles had had a more practical application. If you're making a sequel, I think it'd be nice if some of the puzzles actively influenced what you did in-game. That way there are multiple endings, depending on how good your reasoning was throughout. While I appreciate that it was aiming for the whole 'mysterious sci-fi sadistic robot' theme, the fact that almost all the puzzles were just questions posed to you by an obscure little machine makes the plot feel slightly lacking.
However it's a very nice idea, and it'd be excellent if you could expand on it a little more.