I use TOPO, and have excellent and consistent results. I print and chart all the info I could ever want with this system. Its all integrated to my GPS etc. There are always issues, but overall, I've had nothing but SIMPLE success with this program. I can look at my GPS, and I can see REAL TIME LOCATION at any time. I now have 5 states of maps that I use. Cost, depending on wether you travel like I do, its $100 bucks for your state, but on ebay, you can consistently get a state for under $70. Its worth looking into if your serious for the long term.
There is a ton of info and feedback on this on the forum Im sure. Have fun