I love ImagePrint, especially for B&W printing using custom B&W paper profiles. Think of it--you can accurately soft proof grayscale images, something that is not possible with ABW. I prefer to do the soft proofing in Photoshop, which is a simple matter with IP's Profile Manager. Also, when selecting a B&W profile in Photoshop, be sure to check the "Preserve Numbers" box. This gives extremely deep and rich shadows, which can show tremendous detail after proper adjustment of contrast and shadows. Of course, as with any software, there is a learning curve. Don't expect perfect results right from the start.
Rob