My wife and I completed the DE level for three Pistol CoFs - Pistol, Defensive Pistol 1 and Defensive Pistol 2 (which doesn't appear to be available any longer). We both gained several benefits from it:
- Gave us a reason and purpose for going to the range.
Required doing more at the range than just shooting paper.
Made us much more comfortable handling our pistols, including drawing from a holster and moving.
Gave us something to do together as a couple.
I started shooting IDPA right after we completed this program, and I did very well from the start, I think in large part because I had completed this program. That's not to say the Winchester/NRA program is anything like IDPA; it isn't, but it does get you used to handling your pistol in different scenarios while being scored/timed.
I highly recommend it to all of my students, even in my non-NRA classes.