Sorry, I didn't see this thread JC. I had a delicious meal at 100 Maneiras in Lisbon about a year and a half ago. At the restaurant, not the bistro. I thought the food was great, and I actually did the reserve wine pairings as I was only there for the night, and it was surprisingly good. Small production and wines with age.
Oh, and make sure you go to Manteigaria for pasteis de nata! Don't waste your time in line at Belem.
Hope you enjoy!