Yes, love it!
I am sure
I learned about it through this forum too.
Last fall I made a stranded hot water bottle cozy and as many errors I made in planning that project (somehow it didn't occur to me that I would be stranding up to 5 colors at a time until I was more than halfway through) I think I would have gone nuts if I didn't tack down the unused colors along the way instead of weaving in even more ends and/or having too-long strands that would impede putting a water bottle in the bag at all. It ended up way thick in parts, but I choose to see it as enhanced insulation for the water bottle
Still, I'll restrict myself to 2 colors at a time maximum for a long time, I learned my lesson there.
I am nowhere near brave enough to tackle any sweater. The farthest I stray from rectangles and tubes are mittens, socks, and hats.
Have fun with your sweater.