I wanted this Persian dictionary to be the last. I hate lugging around dictionaries, especially large ones, from place to place. Luckily, my organization bought this for me, because if I had purchased it, I probably would have returned it. Both this dictionary, and Hayyim's, are available online via University of Chicago. I figured that this dictionary would come in handy in a location without internet access. However.
As I have found with other language references printed in Pakistan and India, the quality is horrid. Pages are thin, print quality ranges from tolerable to unreadable, the font is obtuse, and for the Persian, obviously outdated. In short, the production of this reference very much negates the knowledge contained therein.
Conclusion: since this reference is available online, there is little advantage to purchasing it, especially in light of its flaws. Still, if you require a printed, comprehensive dictionary of Persian, more comprehensive than Aryanpour, and certainly Dehghani, it's your Ben Kenobi, with bad type. Of course, there is no English to Persian, but who needs that anyway?