Would you be concerned when a NEW Provider has only 2 reviews which are good for the provider, and neither reviewer has anyother reviews? I messaged both and never got a reply. I asked if they were friends of hers!

It would raise a flag for me.  Do the reviews sound alike?  Can you check her out elsewhere?  Is she on Twitter, have a professionally done website?  

She has No website, no other reviews. She just showed up in Columbus ads in January and February. She has no other reviews any where. She's really tempting, but I'm a little concerned.

Good investigating on your part. Yes be cautious. Wait for reviews from trusted hobbyists or at least someone with a history of reviews. These are the skills that keeep you safe