I was on several dating sites several years ago, of which one was OKC. There seemed to be a lot more people on OKC in my area than on the others (POF, eHarmony, Zoosk). At the time, I didn't know I was an Aspie, but if I remember correctly, there were a lot of "matching" questions on OKC, and I thought they were quite insightful to me personally, asking about things like levels of social comfort, needing alone time, etc.
From what I've read here on WP, it sounds like there are actually many questions on OKC directed specifically to people on the Spectrum. Seems to me there would be a better chance of finding someone compatible simply because of all the questions......and it seems to me that someone with ASD would be more likely than NTs to answer the huge barrage of questions (seems like there were hundreds, if not thousands, of them). I do recall that reading a potential match's answers provided a lot more detailed info than the basic profile.
Through sheer chance, I met my late fiance (the love of my life) on POF. Like me, he was not finding anyone else that sounded "right" to him. Even though we began our relationship kind of by default, it turned out to be the best relationship either of us had ever had.
So, when I get ready to date again, I will probably try OKC again rather than POF (or possibly both), simply because of the things I mentioned in the first two paragraphs above.
If you do decide to go for it, please keep us posted of your experiences. The more information we can share about what works and what doesn't could be of great value to all of us here.......and good luck!