I have recently started out on AWS (I initially used AWS like I used to use Digital Ocean, however after trying out Serverless, I'm of a different mind and changing my ways to do it the AWS way), So this is pretty awesome!
I had tried a lot of databases (postgres, mongo, couch and very recently Rethink) before trying out Dynamo. So I just jumped in, and started something basic, and read tutorials as I went along.
There's still a lot of stuff I don't fully know about (for about Read / Write volumes that is set - I left it at a default of 5) but I guess, I'll learn as I go along.