Pros:
+Very good infrastructure. Two tee pads and two baskets on each hole. Tees are well built and in good shape (minus a leaning short tee pad on hole 5). Baskets are quality Prodigy targets in purple and orange. Excellent tee signs. Short basket moves, long basket (mostly) stays in one place, some have two locations. Not difficult to find your way around.
+Mostly plays through beautiful, rolling, grassy terrain with lots of varied and interesting tree (ex-arboretum land). In the middle of a city without feeling like it's in the middle of a city.
+Excellent use of elevation on the holes, combined with trees, to make for challenging shot shapes. Will definitely require forehand, backhand, hyzer, and anhyzer shot selection.
+None of the holes seemed junky or thrown in there. A few that were memorable or well worth playing again (I particularly liked 3, 5, 8, 10, and 12).
Cons:
-While the mandos do a good job of avoiding obvious safety issues, there are some hiking paths (in the first half in particular) that could have pedestrian concerns, and definitely in nicer weather (I played on a cold, lots-of-snow February Monday).
-Similar to the previous note, holes 13, 14, and 18 all play near/along traffic on Greenspring Dr. The mando on 14 didn't keep my turnover that made the mando from going too far and onto the street.
Other Thoughts:
Locals most commonly play the "Front 18" (Legacy 1-4, Forest Drive 1-9, Legacy 5-9) and "Back 18" (Legacy 10-12, Forest Drive 10-18, Legacy 13-18). This was the way I played them and quite liked it - mixed up the park golf and woods golf in each round.
Some folks have made a deal of the surrounding neighborhoods, but insofar as Legacy is concerned, I really see zero issues. The more "isolated" parts of the course (not really isolated) are close to the Zoo, not anywhere sketchy. Hillway (separate course on-site) definitely has sketchiness concerns.
Park next to hole 1 on the street, between Legacy 1 and 10. Not hard to get a spot on my cold February day but could be tough on a nice spring day.