There was a time I thought TUI were reputable but they have become so unreliable, customer service is dire (try calling them !) and I now avoid. LS (and even FR) now much more dependable. I had a really unpleasant experience recently (3rd in a row and albeit on a Sunwing a/c). Flight was very late (no apology or indeed mention of it), dirty and crew (CWL based I think) looked a mess and were completely disinterested. I hope Jet2 expand further in the U.K. to offer a better choice. Sad really, they were once OK. BTW they were not cheap either.