I got my ILR yesterday at Cardiff PEO.
I took the below documents:
6 months payslips
6 months bank statements
Mortgage Statement
Employer letter with SOC code and salary and job description
Contracts
WP
I also wrote a beautiful explanation in the form where it say would u like to tell us anything about u and ur family to help us make this decision..I mentioned how long ago I came, How my roots are here now, kids born and just how we've gotten used to the life in the UK. Don't know if this helped!
I think the staff at Cardiff is exceptionally good. It wasn't crowded at all! When I went there I actually found out that I had paid wrong fee for a wrong category but filled up the correct SET(O) form, they said I could pay the correct fee and the previously paid will be refunded to me. I did that and it all went smoothly! I went there at 9 instead of 10am which was my appointment time, I was seen within 15-20 mins. After the documents were taken, I was asked to go and wait for the phone call. Got a call in 3 hours and I was nervous and anxious as hell when I went to collect the document..When they said its approved, I Jumped and screamed with excitement...

I made sure I reached Cardiff one day before so I could go fresh. I have always noticed, It makes a lot of difference if u look and smell fresh and smart when u go for these things. Don't look haggard...make an effort to dress and speak well..that's half the battle won!!
Driving all the way to Cardiff was worth it. I have 4 dependents, but I decided to do just my application, just in case i got rejected so I don't lose the money. Now applying for the dependents by post.
Once again THANK YOU Immigration Boards members for doing this amazing job!!!! I will be back for citizenship advice...