I have! I actually finished getting my last two spells yesterday and I am at 104/104, fully ready for the level 80 when it comes, and it will be by far the most exciting aspect of the patch.
Seriously, people shit on BLU for the limitations, but you want engaging job gameplay? learn to do the Moon Flute opener consistently, the open-ended nature of BLU makes it such a blast to figure out the correct combinations on your own, and if you can't or don't want to take the time, you can always look them up.