Hi Arkscan,
thank you dear!
1) Landing was effortless process, it was just matter of waiting in queue. no tough questions from the officer.
2) I am sharing accommodation with my friend and yet to get permanent one for my soon arriving family.
3) Heathrow: I was first time abroad traveler, but found it easy to transit. Unlike in India, they do not broad you in much advance. I was asked to board the transit bus something around 30 min.
Additionally, officer was quite helpful. I had incomplete address of my friends, she call my friend and got the complete address and recorded it for sending PR card.
Thanks,