I am very thankful to say that my FLR (M) was approved last Wednesday 16th of July. We've booked my appointment at Cardiff Home Office. I will enumerate the details of my experience hoping that it will help the other members who's going to apply for FLR soon.

Documents I provided:
Me and my husband's birth certificate
Both our passports
Husband's banks statements for the last 6 months
Husband's payslip for the last 6 months
Husband's P60 form
Mortgage statement
Wedding certificate
Wedding photos
my husband's divorce decree from previous marriage
Four proof of address for me; letters from my GP, Boots and Tesco Clubcard and Council Tax

My appointment was at 12 noon but we arrived there two hours earlier. So we had food first and one hour before the appointment we drove around the home office area to look for a parking spot. Lol We werent sure if there's anywhere we could park there, but anyway, there's pay parking all around the building so it was good. We entered the home office at exactly 11:30. The moment we got in, the security asked for the confirmation email that we printed after we paid for the appointment. And then they called someone and asked if we could go inside since it wasnt 12 yet. They said we had 5% chance that they would let us in. Luckily, there wasnt much application being processed that day so we were immediately brought upstairs after security checks.
A nice lady booked as in, asked for my name and the type of Visa I'm applying for, gave me a number and then told us to wait in the waiting area.
About ten minutes later, I was called to one of the counters. This is where you give all the documents you've gathered for the application. Not much question was asked. The immigration officer quickly went through my papers, he made sure we met the financial requirements and asked if there was any other documents I'd like to give. He then explained to us that the consideration takes about two hours and that my number will be called shortly again for my biometrics.

Fifteen minutes later, my number has been called to the biometric room. In the biometric room, a friendly man asked me to answer three questions on a paper. Just simple questions about when and where I last had my biometrics taken and then he had my photo and finger print taken. He then sent me back to the waiting area. So we waited, nervously. lol It didnt take them two hours to consider at all because at around 1 pm, immigration officer from the biometric's room called me back to a different counter and told me that my visa was granted. He only gave me two pieces of paper stating the condition of FLR(m) visa. And then he informed me that my biometric card should be sent to me by courier within 7 working days.

And that's it, few minutes later, we were back driving back)home.
They are all very friendly and needless to say I am very happy of the result.
I want to thank everyone here in the forum for all the help and information they provided for my application. You guys really are the best!
Cheers!