Reproduce sound without excessively coloring it. That's all.
The technology and know how exists to determine exactly what good sound reproduction is, Bose is measurably and audibly inferior in this regard, but the point is to enjoy the hobby.
To illustrate, my friend owns a Buick. I like driving, and I do not enjoy driving his car, because the control inputs are slow and imprecise. He loves his car, and I do not expect him to change his mind about it, because he is not interested in driving the way I am. And yet anytime I ride in or drive his car I have a good time, because I am spending time with a friend.
Getting back to audio, I greatly enjoy learning about sound and sound reproduction, and because of that I know I would be very unhappy owning Bose, and yet, I happily watch movies with friends that have Bose systems, because I enjoy spending the time with friends.
You like your Bose system? Great! But I wouldn't call my Buick loving friend nuts just because he looks for something deferent in a car than I do.
Oh, if you like cute and little, look into
Morel, they sound better, and IMO are cuter.