I just played a three-month, 20-show tour on one set of EXP16s. Finally changed them today and yes, they do sound better now, but they were not actually unacceptable after all that use.
With uncoated strings, I would have changed strings several times, and spent more money and time.
I used to be an Elixir guy, but two broken strings (out of dozens of sets, to be fair) spooked me and sent me looking for alternatives. I have now used about as many sets of D'Addarios, and have not broken a string.