99% OPN 3
1% OPN 1
0% OPN 2 (oddly enough not a single person has even asked about it)
Many patients call asking about the OPN 1 that their local audiologist tried to sell them for $6000+ 
We explain how little of a difference there is between the OPN 3 and the 1 and they get the 3.
Several patients insisted on getting the 1 because of said audiologist, but only a handful kept them, the rest switched to the 3.
The only OPN cancellation I’ve seen was a guy that got a 3, then switched to the 1, then cancelled without explanation.
In our industry, that’s a crazy good record for a hearing aid. I’ve never seen a satisfaction rate this high before.