Does anyone have experience with the product above for headphone calibration? would you say that it's a Must if you want to mix with headphones? I'm doing my very first mix and I'm mixing on studio headphones (not consumer headphones). I bought cheap monitors, mostly intented for multimedia/video editing, which I will be using as additional reference.

just google sonarworks and cakewalk forums...lots on this already in the forums.  And YES, it is widely used here and considered indispensable.

What should I be hearing better when using the plugin? ...is it better stereo image? if so, I have the monitors for that (although I won't be mixing everyting on them, as they are not real studio monitors as mentioned). Should I focus on hearing specific areas when using the plugin?
Sorry for the re-post, but need some clarification as a newbie.

I've been mixing with headphones for about 7 years. More often than not it was very difficult to get my mixes to translate well on different speakers. Sounded great in the cans, but terrible on PC speakers or in the car. Got it to sound good in the car, then my stereo's Infinities sounded like crap. And on and on.
Started using Sonarworks Reference and like magic my mixes began to translate better on all the speakers!
The calibration really does give a much flatter frequency response, therefore there were no more frequencies building up or getting lost.
My $.02, buy it, use it, you won't regret it.
 
 

I love this plugin. I just wanted to add that you'll want to either have a set of cans that the software supports or buy a pair of pre-calibrated headphones directly from sonarworks.

Very good plugin i have used for 15 days in demo mode and i have used the impulse for my akg 240 mk2.It's almost the same sensation of monitor mix.
I will buy it

Thanks to all.

I've been using it for a year. It's changed my whole mixing experience. I wouldn't think of mixing without it.

I tried the demo version and used the preset for my AKG K240 Studio headphones. Would you agree that the overall sound is not very good when you turn it on? clearly this is not what it was meant for (you wouldn't release something with this as an effect!). I can imagine that it will bother me a little bit during mixing, as I "feel" the music a little bit less, if you know what I mean. I'm thinking about using it for checking (and correcting) if things are all right, here and there, while mixing. How do you guys use it...?

Mix to what you are now hearing. Your ears will get used to it.
I don't use it when tracking or composing in MIDI, but when I start the "mixing" phase, I don't turn it off.
 
Are you using cans that are supported?
 
Don't forget to turn it off before exporting or bouncing the entire mix.