I got my notes yesterday after applying on 21st December - bang on 30 days, I was pleasantly surprised to see it come exactly as stipulated!
Anyway, there's not much in the actual notes section, the most interesting thing for me was the time period between agent review (R10) and officer review was three months. To be fair it's hard to say what happened between those three months because the final entry for approval could have been the culmination of 1-2 months review by the officer.
FWIW, I was granted PR via FSW (Inland)