With over 400 reviews, you should be good.  Also to ease your concerns can you do an outcall?  Her coming to you will make you feel better.

Every newbie usually is nervous and paranoid, 400+ reviews, I'm going out on a limb and say she's ok. The current reviews by first time reviewers may because  she's newbie friendly.

Posted By: AllbSure

Speaking with a provider who has been around since 2012 and has 400 + reviews. She's is on 411 as well. However most of her recent reviews are from first time reviewers. Perhaps I am being over paranoid cut this be a simple LE trap? Doubt it but bing my fist time and in a remote city I am nervous as hell.....   Help

she has the experience to be able to see newbies and based on her reputation ladies take the reference as a positive word.  
Nothing wrong with that.

So put caution to the wind and went for it ... it all worked out... now to gen that second and third "ok" and I will be off to he races ...