Flew TAP from London to Lisbon and then to Paris in their Executive Class (Business Class).
Seats were basically same as economy with middle seat free. Leg room etc identical to economy. There was no IFE provided or nothing that the flight attendant told us about. Food was inconsistent for the duration of journey; our leg from London to Lisbon, we had a couple of slices of cheese and 2 pieces of chicken however our leg to Paris, the servings were more generous.
The flight attendants were pleasant enough. They don't do much apart from the meal service spending most of the time in the galley.
Flights pushed back on both occasions right on schedule. Check in procedure was pretty efficient and the lounge in Lisbon was comfortable enough.