It took me a while because of the measurements I had to do. I wanted the t.v. a certain height above the centre channel. My centre channel also had to be measured so it was at the same height as the tweeters on my main towers. I don't do this everyday so I wanted to make sure it was correct.
In my opinion, there is a huge improvement to the quality of the sound. The sound seems contained and seems to be less bright. The bass has also been enhanced. I was worried a little bit about the opening in the ceiling to the 2nd floor which is above the couch but it doesn't seem to be too bad. I am sure it would be better if this opening didn't exist but who cares. I love that opening lol. I used a high powered magnet to find the wall studs and it worked perfectly. I can't stand using the electronic stud finders because i don't trust them. Anyway, thanks for the feedback. I will see if I can post some pics of the sub stand and well as with the grill of the centre channel.