I generally love pointless moe slice of life garbage (hidamari sketch, minami-ke, minabi straight, etc) but even I couldn't stand Lucky Star.
It was just... boring.
The Lucky Channel segments were awesome, easily a 10/10, while the show itself is barely passable as a 4/10. Very sad. Then again, nothing Kyoani has put out since FMP and Haruhi has been truly great (no more fucking key novel adaptations PLEASE GOD).