Have gone through it twice over the past year (and currently awaiting ROFR on a third resale contract right now). It's slow compared to direct purchases but as long as you know that going into it, it's not bad. Just don't expect to put in an offer today and get points by next week, it'll most likely be sometime in September/October before you get points.
FYI, there's also a thread here where people submit their timelines from offer acceptance all the way to points being loaded, this might be what you're looking for.
Thanks! We put in an offer and contracts were signed and it’s been seen to ROFR, but I’ve heard varying reports of anywhere from 2-4 weeks for that, then 2-4 weeks for closing then 2ish weeks for points. We’re super excited! Expecting a long wait but hoping for a surprise haha