I was too in the same situation as you not long ago. I tried both programs which have tremendous capablities, especially when one considers their price tags. For me it came down to price, support, and intuitiveness. Idimager is very affordable and most importantly, the learning curve is not too steep. If you have some concept of how these organizers work, you will be very pleased how easy Idimager is to use. And MOST importantly is the absolute tremendous support you get from the developer of the software. The developer really listens to his customers and is constantly updating the program. In fact, I had one recommendation that I understand will be incorporated in the new version coming out soon.
At first glance the interface may not be a polished as other programs, but most of us who use these organizing programs are looking for function. Frankly, I haven't tapped into half of what this program can do, so obviously there are features available that rival the most expensive programs. It also adds some nice editing features and it you like to add frames to your photos, a very nice application for doing that!
Again, I was somewhat reluctant at first to try the program, but when I gave it a chance, it provided everything I needed. The trial version is fully functional, so my recommendation is to give it a shot when you have some time.
Ken