I live nearby there. The weather is normally chilly that time of year, sometimes snowy. Many Cleveland Indians April home games get postponed.
Brandywine Falls is the best attraction there in my opinion, should be churning pretty well that time of year.
I'd suggest staying at West Branch State Park, or Atwood Lake (Atwood Lake has newer FHU if needed, but pricey)https://atwoodpark.mwcd.org/
You won't need 3 days there to take the park in. Cleveland (and Akron & Canton) gets a bad rap, but its truly a great region with museums, wineries, & breweries.
Holmes County isn't too far from Cuyahoga Valley NP, has a great Amish community with cool restaurants & markets. So if you're into that kind of stuff, 3 days may not be enough.