I have since concluded that campaign and I can say it was a mess. At LL6 Oleander got so busted that it made rest of the party's damage dealers useless by comparison and any multi-structure NPC a joke. When I buffed enemies to stand a chance against it, the other players were not able to keep up instead.
The rest of the book is great though. Since then I just haven't allowed these alt frames in my campaigns, which isn't a big deal considering they are 3d party. And then Shadow of the Wolf released the Tagetes...