The G QV drives better (it's great) IMHO but is very sterile in terms of power delivery & sound.
Then there are the interior plastics which whilst fine on an entry level car don't cut it for something costing £25k basic.
It's also pretty anonymous, lost in a sea of Astra's an the likes.
The Brera is special, unique and distinctive and the interior quality is spot on.
Again, the 1750 version lack any Aural involvement. The 2.2 is fun when run in and the 3.2 is stonking if you own a petrol station
If you need practicality, go for a 159Ti
So, in summary, the G QV drives better & is more practical if you need rear seats.
Other than that, yes, IMHO, you're mad