TestFreaks.com Opinions Needed

[CheapGames99]

I'm looking into testfreaks for a client - frankly i'm having trouble answering a few of my own questions about them, namely:

1. Can Google spider the test freaks javascript link?
2. Can Google then crawl the reviews in the frame generated?
3. Will Google count that as dupe content? (the content in the frame seems to reside on the testfreaks.com domain..)
4. Do you think this is a safe method of increasing conversions?

Seems all good to me, I'm mainly concerned about dupe content (and whether reviews written within the testfreaks interface can then be spidered ... and i'm not sure it can be).