I'm an "experiment of one" guy. If it works for me, that's all that matters. When my sports doctor suggested plate shoes because some of his other runners with hip injuries had benefitted from them, I bought three different brands, plus a pair of Dragonflies. Then, I went to the track and tested them. My pace varies from 4 min/mile for pure speed flying 30s to 6:40/mile on the longer intervals. The supershoes were superior at these speeds and all speeds inbetween.
I'd warm up in trainers and then run intervals, switching back and forth between about 8 pairs of shoes to see which were fastest. The Dragonfly was marginally faster than the Vaporfly Next %. The Saucony Endorprin Pro 2 and the Atreyu Artist were fractionally slower, but in fairness, the Artist is an old shoe with a lot more intervals on it. Of all the plate shoes, the Atreyu Artist was by far the most comfortable and allowed me to recover faster. It's my speed interval shoe, even over the Dragonfly.
All of these shoes were faster than my traditional spikes over 200m. But in my case, I think they were faster because they allowed me to strike the track harder without pain than my regular spikes.