I dont find it very time consuming at all to toss a tool in the machine..
put in tool, snug it down, jog x up, tighten down. good to go. A little different with the live and front/back working tools, but its pretty darn simple if you ask me, and the same amount of work is required for any preset tooling, you still have to MDI call the tool, move to a position etc.
Even with 'standard' and 'set' tooling, youre ALWAYS going to have to change offset values just like you do with regular old tools. Heck, even when you change an insert this is necessary.
for whats it worth, personally I dont think its worth the time, cost and energy put into preset tooling.