Thanks for asking---and a huge thanks for putting in this course, and committing it making it great. I haven't played it yet, but friends of mine who have regard it highly.
But be aware that amenities don't make a good course great. The right property, and course design, are everything. Or almost everything. The amenities make a good course better, and a great course even greater.
I'll second the suggestions everyone else has given.
Good, easily available maps certainly sweeten a first-time visit.
The degree to which a disc golf course is on a disc-golf-only part of the property, and the less overlap with other park users, the better. We share pretty well, but disc golf is more enjoyable when we don't have to wait for wanderers to clear the fairway, or have to warn people to watch out in case our throws go astray. I don't know if Langley Pond is already on exclusive land but, if so, I advise not encroaching too much on it with future projects.