My strategy and preparation was nearly identical to @mckenz007. The only things I did differently were:
I used @Slay the P.E.'s practice problems and practice exam. The solutions were well explained and better explained some topics than Dr. Tom.
I did not touch the Six Minute Solutions book...
Passed. Dr. Tom's course laid the foundation down for all the concepts. @Slay the P.E.'s prep material and practice exam filled in all the gaps from Dr. Tom's course (particularity combined cycles).