The exhibition was outstanding; I felt the visit was well worth making.
Tips
history
Recorded in Qing-dynasty 《二十年目睹之怪现状》 chapter 40: 也不虚此一行 — spoken with satisfaction after a journey that finally achieved its goal. The compact form 不虚此行 has been fixed since.
usage
A set compliment after trips, visits, or attendance at events. Often used after seeing something impressive: 参观完博物馆，真是不虚此行. Never describes daily commutes — "this trip" (此行) implies something notable.
