Absolutely mind blowing idea. If you have free time you can start writing reviews right now, all you need is internet connection. For students or people that need extra money. Also its good to start if you are new to cryptocurrencies. You can find a lot of good reviews and also if you interested in something, but you don't know a lot about that you can come here and try to find reviews on that. Also Revain is not just a platform for reviews its a token based on Ethereum. At this moment token doesn't have high price, but I think its really good idea and price will go higher. And of course you are getting paid in this coin. All you need is Ethereum wallet and free time to spend on writing reviews.