I just did a test:
- loaded all 1144 addons / 341GB in my Addons Linker folder: 7 minutes from hitting “Launch” to the ingame main menu screen;
- loaded a typical session of 208 addons / 61GB (2 planes + my Australia and New Zealand folders): 3 minutes from “Launch” to the ingame main menu screen.
Besides, as you mentioned, the ability to avoid conflicting addons loading together, it is of significant help in reducing the game’s impact on your memory and initial loading time. I should add It has been an amazing tool to keep my library organized and tidy. It takes a bit of time to set up and understand as you start but I couldn’t play without it.