I sure hope Ian checks in on this one. I'd be glad to have even more insight to the changes made.
I haven't played the course in roughly 6 years, and it was one of my favorites in WNY back then. What I saw yesterday elevated the course significantly. Through the entire day, I was astonished by the new views that had been missing for years. The course simply "felt" different, which was a wonderful thing.
Buffalo received a surprise ice storm in October 2006 (roughly 2 feet of icy snow on trees that were still full of leaves), which kick-started tree-removal programs at a number of courses. Luckily, some of the courses, like Park, took note of the improvement and continued the process voluntarily. Four holes in particular (4, 14, 15, 18) used to feel "restricted" but have lost the claustrophobic character (there were many others, but those were most pronounced).
On top of that, the course restored many of the chipping areas / short grass around the greens, as well as recovered a number of pinnable areas. Several times I asked our host to confirm "this wasn't green before, right?" In a number of places, the short grass behind greens would run all the way to the next teeing area, providing a level of intimacy that had been lacking.
The most striking transformation (to me) was the 15th hole, which used to be one of the holes I dreaded, but is now one of my favorites. Looking forward to hearing from others during this tour.