Try the demo that's the best way to determine if you can grasp it. I just could not get my head around ZBrush, it's 2.5D concept and it's workflow left me cold. It's not really a modeler per say, yet it is, and it's painting is not as robust as say Painter or definately Photoshop. I've read a lot of articles and seen a bunch of people useing it with wonderful results so again I recommend checking out the demo to see if you like it. It is rather pricey and you may do better with another 3d application. I know that you work in photoshop so you might think about getting just a 3d program that you can grasp. All the major 3d applications have light versions that you can work with and see if you like. 3dstudiomax, lightwave, maya, softimage all have 'lite' crippled versions that let you really test the workflows and functionality without having to shell out the initial money. my 2 cents