I've been running IntelliJ 13 for about a month and others have started to upgrade. I've seen no real issues, other than early betas having trouble migrating settings from 12. I think Kevin ran into a bit of SVN funkiness after upgrade, but got it resolved.
Native SVN 1.8 support is important, especially to those who use TortoiseSVN. Some of the UI improvements (presentation mode, navigation & search features, lens mode) are nice. Lots of improvements we don't care about (Android, Gradle, Groovy, Scala, etc.) Mostly an incremental release; nothing earth shattering, IMO.
Adam |