I see Summit county is indeed simulcast - multiple towers, same frequencies. Click under the links for FCC licenses to show the tower locations-
Ohio MARCS-IP: Multi-Agency Radio Communications Site: Summit County Details
www.radioreference.com
Since this is an older radio, presumably your getting second hand, if its from someone local, I would suggest to be able to test drive it first with current programming from the database.
There is some encryption being used in the county and the OSP, look under MODE for De - partial and DE full encryption.
The radio will let through that encryption sound. FYI Unidens will just skip encryption and you wont hear it.
The pro 197 does indeed do a better job on simulcast than the later pro652/ws1065.
The reception on simulcast has to do with your location and where the towers are. If you are say a mile or two away from one, it may work ok based on what Ive seen around here with peoples experiences on simulcasts.
Also be sure not to have a cell tower say 3/4 or less away that can play havoc with reception on any scanner.
If it doesn't work out, your looking at any of the Uniden scanners that do better on simulcast, with the sds100 or 200 that are designed to work on simulcast, but are pricey. On any of the models apply the firmware updates that Uniden has helped with simulcast reception.
Prices lowest to generally highest:
996P2, 325P2, 436HP, Home Patrol2, 536HP, SDS 100, SDS 200
One thing is if down the road OH goes from current phase I digital to phase II the unidens will still work, the 197 wont.