I have a Lifestyle Model 5 system in my living room, only because of the high WAF (wife acceptance factor). The subwoofer/amp module hides away nicely about anywhere. Mine is actually up on top of the huge old entertainment center cabinet. The five double cube speakers are small enough that they hide in the books shelved on both sides of the cabinet and behind the sofa on the other side of the room. The system sounds fine for TV and Movies and background music when people are over, but I would not claim they are good enough for anything that could remotely be described as "critical listening". My larger system in the man cave sounds so much better that I hardly use the Bose anymore. It does take up a lot of room, however.
One problem I continually deal with is the head unit with the CD player and all the controls never turns off, and it burns out a capacitor on the circuit board. I've replaced it twice now, and it needs replaced again. (Could be a bad solder joint from my repair, will have to check.) Many of the used head units I see for sale have a "blank display". Easy enough to do if you can solder - you tube videos showed me how. I rarely use the display on the head unit - just use the remote. Incidentally, I really like the remote as it uses Radio Frequency (RF) instead of Infra Red beams (IR). I can use it anywhere in the house to control the system.
Another problem is with buying them used. What should be a well under $100 system usually has a higher asking price. People who know little about audio see the brand name and think it's worth a lot more than it is.
As everyone else is telling you, there are better choices than Bose. On the other hand, they aren't all THAT bad if you get it at the right price.