I haven't been to Harbor Park yet, it's been a busy summer and I haven't wanted to brave tourist traffic and the tunnel. 😉 The park is over 20 years old and a vast improvement still (from what I've seen from the outside) over the old place near the airport (There's an IKEA there now.
This Spring we stayed at the Aloft hotel next to the park in Durham before my 6 month checkup at Duke. Will be back in September right after the season ends. Our visits to relatives in the area just haven't coincided with home stands.
I was the Salem park several years ago, it's was nice then, I hope it held up. Spent many a summers evening in the early 70s at the old park that doubled as a high school football field.
By the way, if you're looking for interesting ballparks, check out Deltaville, Va. One of the last wooden parks left. There's a small "town league" in the region and they play some games there. We drove by it a couple of weeks ago, but it was about 4 hours before game time. Not much to do there to kill time with smallish dog in tow. (The park does allow dogs)
https://deltavilleballpark.com