I've only played one round at Mid-Pines, in February 2004. For me it's not as great a course as Pine Needles but it's a very, very good one. It really rewards my usual game of keeping the ball between me and the hole and it seems possible on most holes to leave yourself a straightforward chip shot if you miss the green. OTOH, if you miss in the wrong places (as I tended to do too often that day) it will test your chipping, pitching and putting to the max.
As Pete has said, it is a perfect course for walkers (maybe even more so than Pine Needles) and a lot of people from high handicappers on up to very good players actually find it more fun than its big sister across the street. I won't go that far because I just love Pine Needles immensely but Mid-Pines will provide you a very enjoyable round of golf. I can't wait to play there again this fall.