That you get what you put into it. If you don't want to spend the time you don't have to, but if you spend the time to really learn the software it can take your company to the next level.
Net-Results is simple and handles the basics well. The sales and support teams are unparalleled! They gave me a very long free trial that helped me determine if Net-Results was going to suit my needs. During that time, there was no pressure from the Sales team. Once we did decide to purchase, the Support staff jumped right on board to answer all my questions (there are still a ton).