I am buying a ticket for a friend: REC-BCN. I am thinking of purchasing the exit row on the REC-LIS; LIS-REC legs for the additional leg room.
Not being at all familiar with TAP some questions:

1. I note there are 5 versions of the 332. If I reserve exit rows by the seat map of booking and there are equipment changes are the odds good that his seat assignment will migrate to the equivalent exit row? (Reading about TAP appears they are a lousy airline to deal with if things go "south", and these seats are $100 a pop).

2. Is the food in economy edible ?

3. I have several layover option times in Lisbon before onward to BCN, how is TAP for on-times?

Rather speculative, some of my questions I know, but what I read about TAP service does not instill confidence so I would like to minimize his chances of screwups.
Thanks