All the reviews will be posted on Steem so they will also show up on steemit.com.
This is a great question someone with more knowledge of how google indexes content may be able to answer it but I will certainly be looking to promote reviews as much as possible.
I bring on a lot of new users to steemit and I will encourage them to download and use this. It's really cool and easier way for newbies to earn a little steem from me than writing long form blog content. Great job!!! I love this. Just did my second review. Considering I eat out ever meal this will be fun for me.