Teenager and older guy issues?

so i'm 18, and i met this twentysomething year old (probably mid to late 20's) on craigslist (ewww don't get me started this is a fluke) and he seems like a great, really attractive guy. I've ****** around with older men a few times before, and i know how persuasive they are when it comes to younger guys. especially cause all they want to do is **** us. but this guy seems so nice and intelligent and genuine, etc... i'm uming he's just in it for the , and i know if i hang out with him that's ultimately where it'll end up. probably meaningless too. that's the only kind i've had in my life... i want to find somebody i care about but in the meantime i still have my needs. does he sound skeezy, should i avoid him? or is there such a thing as genuine, kind craigslisters who hate the bar scene and are just giving it a go, and found the perfect guy and actually want to get to know them, etc? or are older guys really that good at putting up a facade? cause he's got me convinced. how many of you 20-30 year olds could coerce a teenager into whatever you want?