I used it and found it very helpful. I ordered the ADAM Anatomy CD-ROM and the Physiology CD-ROM. They were bundled together and sold by Journey Ed (www.journeyed.com) at a very reasonable price. You'll have to fax them a copy of your student ID in order to get the discount (they knock a few hundred off the retail price).
You can explode, fly through, slice, and all sorts of other good stuff. The program is 3-D and based on real cadavers. It has radiologic correlations too.