I just made a video and posted about Golem here: https://steemit.com/golem/@acryptotrader/golem-gnt-review-creating-a-decentralized-super-computer
I raise some of my concerns there. I think in concept it's nice but the fact that the market cap of Golem before the Bitcoin dip was over half a billion USD boggles my mind. There is NO proof of concept yet, and not even a running product..