SCHMELDING  Great app., but the price point is too high. Maybe $19.99 is more reasonable for what it does, IMHO.  
(Version 1.5.5)

MICHAEL CEO  This is great application that excels in ease of use. I found it indispensable when designing websites, flyers, or any diagram that involves color.

A very nice bonus feature is the photo schemer -- having Color Schemer find a color scheme for you from a photo.  
(Version 1.5.3)

OL_OL  Great App ! I wish it had the ability to add to your favorites color list all "suggested colors" at once, rather than dargging them there individually.  
(Version 1.5.2)

SIRTIGRIS  Lacks a CMYK converter. Definitly too expensive for only an RGB descprition. Could have been useful, as the interface is really smart.  
(Version 1.5.2)

FLOPKA  Price is prohibitive, considering there are so many free web-based utilities of this type.  
(Version 1.5.2)

ERRORR  The Photoschemer expects you to drag and drop as the only way to load a photo, but the drop window hides itself when the app is in background, making it a unnecessary hide and seek experience should you wish to drop a photo from the finder.  
(Version 1.5)

NUTTDAN  An amazingly wonderful program rendered worthless and useless by its prohibitively expensive cost. Definitely not worth $50. A shame, really, because this is an app that I would normally buy in a heartbeat if it weere reasonably priced.   
(Version 1.5)

JBLAKEH900  I concur the price is a little steep, but I love this program.

Any busy designer will appreciate and benefit from seeing quick color palettes based on a photo or existing logo color - or simply experimenting and testing different color theories - something most creative suites don't bother with at all.

In response to other comments... the UI may not be 100% Mac compliant (neither are most of Apple's own apps), but the UI does not get in the way of using this program - it is very intuitive. Similarly, whatever programming tools were used to build the program don't effect it's performance negatively...  
(Version 1.5)

BRADY J. FREY  Beautiful, simple color studio that is easy to use and control -- I recommend it for any designer who's having a nice episode of 'Designer block'. My only gripe? The hefty price tack doesn't justify the purchase with so little features... especially in a program that only compliments other programs, not necessarily a must-have utility.  
(Version 1.0)

BRYAN  Overall, good in concept...but lacking in implementation. The GUI needs some work, but kudos for trying to at least make this look like a real Mac app (even though it's obvious that it was developed in RealBasic). Try making the toolbar more Mac compliant. Same story with all of the color wells...when you click them, the Color Picker should appear. Get rid of the palette on the bottom in the middle (use the Color Picker instead). I don't quite understand why the Analyzer isn't a part of the Suggested Colors. Also, if the Color Picker was used, it by nature allows the user to save their colors and use them in other apps.

Oh, and the cost of this and Color Consultant Pro should be half of what they are, IMHO. (Actually, I'd value this at about $10 since it's not close to being Apple HIG compliant.)  
(Version 1.0)