Champions of Magic and its description was misleading. The book seems to promise customization of some sort that would make a spellcaster stand out....but simply presents one base class and two prestige classes. The presentation and artwork was excellent, but the content was a miss for me. If one is a collector of the d20/3E system, these classes are not unique and can already be found in various books already. There are literally thousands of base classes and prestige classes out there, so there is gonna be some similarity. I was glad that I got this when it was on sale, because it was not worth the full price.

Three new magic themed classes for the Pathfinder (or 3.x) game.

The Wytchblade is something like a spell-sword or magus only related to witches. It is a full 20th level class, but I think I would have enjoyed it more as a prestige class.
The Maven is a prestige class that warps and changes the spells it casts. They trade off total number of spells they can cast for flexibility on their remaining spells. I like the idea, but I'll have to see how it plays. In game terms they are metamagic masters.

The Time Traveler is another Prestige Class. This one manipulates time and it's assorted effects.

There are no new spells or feats, just the classes.
The layout is good. Nice and clear, easy to read so the product looks great.