I have a Bose cinema system, OK, but not gob smacking brilliant.
You have to understand the set-up in the Bose shop is professionally tuned, in a room without the normal soft furnishings that absord sound, so I don't think it will sound the same once you get it home. You have more tune-ability with separates if you have the room and the wife allows.
There are better systems out there unles you want an all-in-one, which is handy and suits a lot of people that are badge conscious.