We tried Myrna's last evening and are glad that we gave it a try. To answer my earlier question, as some others have, they to have a few taps of draft beer. I had Tuckerman's IPA and my wife had Smuttynose Pumpkin ale.
The staff is still the group form Nadia's and is a very friendly bunch.
My wife had Ravioli alla Nadia with shrimp (a special) and I had Chicken Parmigiana. Both were very good and we each had some left over for lunch today.
As the OP noted, it is hard to see that there is a restaurant there from the road. They are in the process of getting better signage.
Overall very good food at a reasonable price and very nice staff. And a change from other local offerings. I just don't know why it took us 2 years to give it a try.
Current menu:
http://myrnascc.com/menu-1/