Go for it, I would stay away from AW though as the WG who list BDSM don't really understand what it means.
I have had a few different doms, tbh I have not had a bad experience YET, I prefer the DOM to take full control of the session. You can list your limits. I hate my balls being pulled and my nipples being played with, so they stay away from that. But I enjoy CBT, sounds are fun and so its nettle play ermmm and needles I could go on forever.
Some doms will let you have more than one pop, over just one pop. 5 times in 90 mins is my record but one is the norm.
Be respectful with the way you ask questions, as some doms are in the role all the time and you can offend them if you word your question wrong.
MOST don't offer sex ( I think I have been with one who did, but we didn't have sex ) its a mind-blowing experience.
Its very different from a normal PUNT in much the same way as a message with a HE is also very different.
-- what area are you looking at? I maybe able to point you at some services.