I think it'll change your listening significantly. I've had both radios, and the '97 is as more sensitive a receiver as the '92 is deaf, particularly on 800. I have trouble receiving even local systems well with the '92, where the '97 receives them fine along with others in marginal areas. These are compared using the same antenna.
As said, you gain some features (LTR, the '92 supports tones) along with control-channel-only, more than one system per bank, 50 additional IDs per bank, ID sub-banks, SAME weather, etc. About the only benefit to the '92 is the "chained" custom search banks.
Brian