The new RR flights are harder to use than the old ones, as there were no restrictions on those.
However, the new RR flights are still infinitely easier to use than Legacy FF trips.
Case in point, October 2005, I booked three 25K Delta Skymiles tickets to Orlando for May 2006.
I needed a few more miles on the CC to book the fourth ticket, so had to wait. Once the CC rolled over to the next month, there were no more 25K tickets left on the Delta flights.
So, at that time decided to put my older son on Southwest. Then my younger son wanted to bring his girlfriend. So between November and March, got enough CC points for two RR flights. One the old kind, the other the new kind.
I booked the kids using the old and the new RR tickets for late May weekend flights in early March. (I'm referring to 18 & 19 YO Kids)
Then in late April, my older son tells me his girlfriend managed to raise the money to come along with us. We make the arrangements and get approval from her parents by early May.
I go to purchase her ticket on the same flight the other kids are already on, and the flight is totally booked up. However, because you can do one ways on SW, at two weeks before our trip, I was able to switch the outbound flight on the old AND new RR ticket from Nashville to Birmingham, and get all three of them on the same flight. I was also able to switch it where the GF was using the RR ticket and my son was using the paid for ticket, so he was earning more RR credits. (We bought the airfare, she paid for everything else).
I know all this sounds complicated, but because of Southwest flexibility, it was possible. This is totally impossible on a legacy carrier.