Even my linkshell is sorta split on this one, but being a XI vet I've really missed this aspect of the game. I always felt the ability to do this on the fly allowed players to really separate themselves and reach their potential. It was always nice to TP in accuracy gear and then when weapon skill/battle regimen time came throw on all the STR and gorgets,etc. Plus it really gave tanks a chance to shine. Specifically casting in your haste(recast) gear, then throwing on your damage down idle gear, and when you saw a big magic TP move, putting on your resistance build.

Maybe its just cause of how little there is to really make your class unique but I find myself stuck in a cookie cutter role with cookie cutter gear.