Open limping? Are you crazy!? Playing QQ like a lower pp (set or forget) will probably lesson your profits with this hand.

Maybe at your stakes/tables its a good play but usualy not, and you want a good 20k hands to compare each line. I think playing it for overpair value aswell is more profitable (just like TPTK where you go to war but usually not for you whole stack, learning to play it aggressively but also recognising when to slow down, get to SD cheap or even drop it).