I'm using a NZXT 510 or somethingNH-U12s is a very good tower type air cooler.
The key is to have a case with sufficient front intake air to let the cooler do it's job.
Think two 120/140mm front intakes or better.
I'm buying it from Newegg (sold by Noctua cooling solutions)Yes, it has much better performance than the cooler it comes with.
Do you already have this cooler or are you looking to buy one currently?
If so, WHERE are you located and where can you purchase from?