First of all, for those who don't know, E.N. Publishing has a forum devoted to it, located toward the bottom of the list of forums, just above Meta. There are several threads there about EOM-R, and I'm pretty happy with the fact that five or six posters regularly discuss the rules. Right now E.N. Publishing is about a week away from starting layout on the first supplement for EOM-R, called Lyceian Arcana, which provides guidelines and alternate rules to help you take the rather generic spell system and tie it into a coherent worldview of magic.
Second, if I hadn't caught this post at 2am, I probably would give you a fuller answer, but as it is, I'm sleepy and must be brief.
Problems - Illusions that 'deal damage' are not as well designed as I'd hoped. I'm working on a fix, and I intend to post it on the ENPub forum to see what people think of it.
The book probably should've had a nice 'Beginner's Guide' section so you could jump right in more easily. I probably should've stolen the Ars Magica terminology of 'Noun' and 'Verb' for spellcasting, but I'd never read Ars Magica until after putting out EOM-R.
There are some typos and errata we missed even with the patch.
Probably some other things too.
If you have more questions, I'll be able to respond Friday.