Mine was rather straight forward, I had HSMP + Tier 1 + another Tier 1 extension. Initially was contracting but have been permanent in the past couple of years so income is easy to proof.
The only slight complication is that my wife has not been a dependant for over 2 years although we have been living together for longer than the requirement. Was a little worried because reading from this forum that there could be issues at the PEO.
11:45 arrived at Croydon - within 5 minutes we got through the waiting room, security and into the check-in counter
12:00 completed payment
12:15 completed registration
12:30 completed biometric
13:00 saw a case worker. While reviewing the doc she consulted her supervisor and told us there is a "problem". She saw on my wife visa that she only became my Tier 1 dependent less than 2 years. We told her that we have been living together for more than 2 years so should be OK. She went back to her supervisor and cleared our case. She took all our docs and the photocopies and told us will be around 2 hours. We could leave and come back around 3pm if want to.
15:15 called back to counter, was told that ILR was granted and our BRP should be in 7 working days. All good - celebration time
Thanks again for everyone in this forum, it has been immensely helpful in answering our questions, filling the forms and gathering documentation.