It is hard for me to rate this, as I got it during the special sale and couldnt resist. For the price I paid which was quite cheap at the time (I think a dollar or so?) it was well worth it and wouldnt complain much.
One thing I"m not sure if it was a glitch or not, is during the jigsaw puzzle scenes, the textures for the sky did not match what they really were until you clicked to put the pieces in place. If that was intentinoal, why does it seem like a bug, especially since the other pieces had proper textures.
Wish there was a bit more of a better built in tutorial or manual for things, I didnt quite understand how the flies thing worked for a while with hints, etc.
Of course, Machinarium is better by far, but you cant really judge them that way as this one seems a little more geared down for kids, but will still keep adults entertained as well. Generally, I hate, hate, hate puzzle games of the (Wheres Waldo type), and especially when they wrongly classify them as adventure games. But this one was a bit of an exception.