Is there any compatibility issue with Amazon Aurora? I'm exploring the possibility of using Aurora as a database backend for a large-ish Drupal 7 site because of the potential performance gains. Before I do that, though, I'd like to know if there are any outstanding issues with this kind of setup.
So far, the only resource I've found are this fixed Drupal.org issue and a number of rather old questions on this site. I'm still a bit concerned because the Aurora FAQ states:

Q: What does &quot;MySQL-compatible&quot; mean?
It means that most of the code, applications, drivers and tools you already use today with your MySQL databases can be used with Aurora with little or no change. The Amazon Aurora database engine is designed to be wire-compatible with MySQL 5.6 using the InnoDB storage engine. Certain MySQL features like the MyISAM storage engine are not available with Amazon Aurora.

(Emphasis mine)
It's the &quot;most&quot; that has me worried, specifically. Are there any pitfalls when using Drupal 7 with Aurora?
We are running a couple of projects on Amazon Aurora  with no issues so far. Our largest project is a D7 project with many contributed modules, and a large amount of data being moved.

We've never noticed any DB related issues aside from normal MySQLisms. It's really transparent to Drupal. We use normal Mysql connection strings and zero core changes. 

Aurora is more expensive. A lot more expensive. It only starts at the db.r3.large tier, and works out to a monthly (non upfront rate of 0.190 per hour). So the price difference must be considered.