Before this came in the mail, I was cleaning my MBP with a micro-towel, the kind they give you at the eye doctor, and a 'non-glare, alcohol-free' lens cleaner from Walmart vision center, and that worked okay, but iKlear cleans way better

It's a great way to keep your iPhone or iPad screens like new.

However, if the surface is soiled in any significant way, it's not going to do a damned thing.