I’ve had Microshift Advent with the medium derailleur installed on two Terns with 406 wheels for a year or two now, using both bar end and rapid fire style shifters. The installation was straightforward and the documentation and videos are pretty good. Shifting feels clean and it keeps its indexing well. Once installed it hasn’t needed any further attention. The kit itself feels quite sturdy and tough. Would definitely recommend it for a commuter, touring or general bike about town.