while NR is something I have always only done sparingly, and typically not on vinyl2digital transfers . . . larger trying to improve playback of old live shows from tape, etc.
and I have not qualms about suggesting that overall AA 3 is an actual improvement, by and large, over earlier versions
but as there is no upgrade path any more from CEP and cost is now $349 whether the cost/benefit fits depends a great deal on what OPs needs are
and reviewing the NR for vinyl archives can reveal info on a whole of host of issues . . . prior to AA 3 CEP 2 was one of best tools for vinyl transfer to digital
plus there should be individuals on the forum familiar with both current and earlier versions whose opinion concerning benefits of upgrade (vs. cost) should be valuable and honest
Frequency space editing makes a lot of clean up tasks significantly easier, quicker, nicer . . .