I also have an iFinder, the basic model, plus the MapCreate 6 software.
I've used it nearly 2 months. Having used a Magellan 2000 XL previously I was familiar with the general GPS procedures. The iFinder seems to be adequate in every respect for my needs. Their manuals are ample and any questions I've directed to Lowrance via e-mail have been answered promptly within a couple of days. I'm still exploring all its options of course but what I've found so far lead me to believe I made the correct choice.
You can really learn a lot more about this unit and the other Lowrance products by visiting their web site. www.lowrance.com. I'd suggest doing that with any GPS product before making a purchase. Lowrance has provided a superb web site for this purpose.