Lilly even for level 3's it'll open up tons of skilling potential. Yak at living rock caverns and you WON'T DIE. Thieving at plunder with just bunyips and anti poisons for hours. Graahk runecrafting, quests you couldn't do before cos of low HP and max hits on monsters opening up, there's tons and tons of possibilities that should have always been open and now skillers can take advantage of.
I realize that was probably horribly put together.