Bad news first: This isn't authentic Portuguese food. The owners aren't Portuguese, put kielbasa in the "caldo verde," and don't know how to spell bacalhau (or bras, or quite a few other Portuguese words...). The kielbasa bit actually bothers me because they claim that it's real Portuguese chorizo. But I guess most Americans don't go to most "Chinese" restaurants wanting to eat authentic Chinese food, either.
The staff are mostly eager to please (even if you expect them to really give you free drinks--this is a restaurant that's in it to make money. They do want you to pay for that caparinha they said they were going to "give" you, if at the Happy Hour price.). The restaurant is physically pleasant, and the food is decent, maybe even good if you don't know any better. Just don't get too carried away with your fantasy that the food you're eating bears much resemblance at all to what you'd get in Portimao or Albufeira.