The way we travel and how travel services and experiences are organized is constantly changing. So I wonder, among relatively recent trends of the last 2-3 years, what are the ones you like, and the ones you dislike.
Here is my list to quickstart the topic
The good
minibars that come empty for you to fill with your items (minibar account settlements are always a source of aggravation)
end of roaming fees for European-issued GSM cards (major development that makes a traveler's life substantially easier)
the cashless travel era has truly arrived (litmus test: the ice-cream kiosk on street take cards) in several countries and is rapidly expanding in others. Germany and Austria are stubborn holdouts, though.
more and more busy attractions allow time-slot reservations with digital ticketing
major revamp of permanent collection displays in some of the World's top museums
Italian gourmet cuisine got a jolt of renewal and reinvention badly needed to refresh it (like it happened with French gourmet cuisine in the 1990s, or so I read)
The bad
TripAdvisor changed so much that it lost its value as a trusted travel directory (due to pay-to-play features for listings)
Driving foreign cars into other countries and especially their bigger cities has never been more complicated in regard of pollution stickers, environmental tolls etc., all requiring that you plan in advance such trips for the maze of ad-hoc regulations (I hope the EU standardizes the whole thing based on its emission standards categories)
street aggressive peddling for cheap goods, illegal stalls selling cheap stuff, aggressive panhandling all seem to have gotten worse in otherwise great cities like Rome and Paris.
The "Rail Alliance" promise of seamless airline-style high-speed rail ticketing is still unfulfilled
hotel rooms more and more have transparent or non-private showers, and it is hard to figure that out from most pics (it is an issue when traveling with a non-SO companion).