My short insights.
I got russia, I wasn't happy with that, but luckily germany let me into sweden, and england started south, so I was safe north.
Especially I had room to expand.
On south, turkey was not so agressive on me, but austria was doing completely crazy. Attacking me, attacking turkey, instead of holdin a stable line, and most of all attacking italy, which is always a suicide with austria. (and for italy)
Anyway, after taking norway, I was lucky to hold it, and the german ship was doing sg. crazy as well, but leaving denark empty, was a gift. From that on, I knew germany is mine.
England was still occupied with his efforts against france, so I had nothing to worry, just turkey, whom I really took care. It was the most important for me. I was ordering my ship to attack black sea, bulg, or go back to sevastpol, so I could have an army in rumania, but at the end I always changed my mind, and just held it.
After austria's CD I got a little bit worried, turkey will benefit, but for some reason he didn't. I could get vienna for free, from that on, it wasn't a big deal at all to finish.
The biggest than is england's, I couldn't understand why he didn't turn on me at all. I was trying to help him against france, who seemed a bit more reasonable, but I didn't have to :)
All in all, I think I was lucky about the chaos going on everywhere. No-one was cooperating at all, and it was perfect for me.