Nandos. Never been. Never gonna.
To be fair, and to prove I'm not the insufferable snob that I so obviously am, Nandos isn't bad
per se. They actually grill the chicken rather than merely reheat. There's at least a whiff of culinary industry that goes beyond simply snipping open vacuum packs. If you can put aside the fact that it's probably miserably raised factory chicken (to be honest, I can't these days), it's a recognizable food. The sauce is probably the saving grace. It's daubed liberally on the outside of the chicken as they grill, but none of it gets inside, it just slithers off with the skin, so really you end up dissecting the chicken and pouring on more sauce. Effectively, it's really a sauce restaurant, the chicken is just the serving mechanism. The chicken wings have actual bones which really, really should the expectation when ordering chicken wings. Oh the whole though, I don't think anyone in the UK should be allowed to do chicken wings, the result is generally as flightless as the bird itself. It needs meaty wings, the sort that look like they're from chickens raised in a gym on steroids and protein shakes, and they have to be soaked in the twice as much sauce as you'd ever believe they'd need (ideally equal parts butter and Frank's hot sauce, trust me on this). It's the kind of excess that only Americans can really manage.
My Damascene dining moment came with the bill a while back when I got the bill for a lunch for four which was the better part of £80 for not very much. The portions are small, a half dozen small chicken wings, a quarter of a modest-sized chicken, a breast in a single pitta, the sides come in rationed little pots. Now I'm not a fan of epic portion sizes, but I can't say I was full. For £80, even given a couple of beers, that's a lot for what is basically fast food chicken. You can eat a lot better for less, and for a small uptick, you can eat lunch in a proper restaurant.