Pros:
The long, wide, and flat concrete tees were a pleasant surprise
Friendly locals - we arrived at towards the end of a one-n-done tournament, and we managed to integrate in without any problem, and got to spend some time talking about the local courses.
Cons:
With some the baskets being hard to spot (no coloured band) and some holes having multiple pin positions, a map at the tee and an indication of the current position would be nice.
Lower-grade plastic will be eaten up - my Pro-D Stratus looks as if it was gnawed on by Preston.
Other Thoughts:
Course plays across (often), down (sometimes), and up (infrequently) the ridge/slope that forms South Mountain. Despite being on a mountain, the elevation changes are not overly extreme, but the rocky terrain certainly is - wear stout, firm-soled shoes. Scattered, mid-sized hardwoods and evergreens are used to form primary (and often, alternate, so you do have decisions to make) throwing lanes of various width, from tightish to openish, but nothing extreme nor unfair. The trees are not so dense that recovery is not impossible, and the undergrowth is not existent (its rocks), so disc loss chance is minimal.
From the white (concrete) tees, from where I played, the average length is just under 260', ranging from 200'~350', so, when combined with the omnipresent trees and bending throwing lanes, makes this course about control. Shape-wise, a variety of lefts/right/straights will be needed from the tee, with moderate turns needed mid-fairway, or subtle turns needed late - at times, both.
Navigation for a first-time visitor isn't too bad with the map, as long as you pay attention to the "mixing bowl" that is 6-8.
Favourite hole: While I very much enjoyed the view across the valley from basket-3, and trying to throw the perfect S-shape down the straight ~350' #14, number-15 was my favourite, requiring a "classic" right-turn-then-hold-the-line at the midpoint of this gradually descending ~300' hole, with many a hardwood ready, willing, and available to knock the disc askew.
South Mountain is a fine course, adding to the varied options one finds in the greater Allentown area.