Not really enjoyable, as a lot of the levels require you to use physics exploits that were never intended to be in the original game and so just don't really feel satisfying to pull-off. It reminds me of Kaizo Mario and is a good example of a game being too hard (and in many cases pretty unfair) for no real reason.

Also I know that this is from 2008 and I guess the joke is that scientists are all awkward misogynists, but their voice-overs get really weirdly sexual, and in retrospect it makes the mod feel quite cringe, almost like a 13 year old made it.