Yes, when I was still in high school, I had set up a Munin graphing node on AWS. Well, what I didn't realize at the time was that Munin likes to use a lot of disk IO every time it writes out the graphs. AWS charges for I/O on their SAN (not on local disks, but the free tier doesn't come with local disks), and so I ended up with a $150 bill and only use them now for Route53 (DNS hosting, it is fantastic for that), and S3/Glacier for archival storage.
It is worth trying if just to gain knowledge on AWS. But for hosting, I'd say DigitalOcean