I had a chance to try another brand, eyeone and after it was finished calibrating my monitor my blues were pretty much purple. So i decided to take it back and try Spyder3. To much joy the calibration setup was much easier and really fully automated for a dual screen setup. It to be honest was a really nice experience after being frustrated with eye-one. So anyways the kit does cost a bit but to be honest it works well. Heck even my iMac is looking solid after the calibration.