If they're new and have 0 reviews/only 1 review by a brand-new reviewer, then really there's no guarantee it's not a B&S/LE/BSC etc. The LE angle is low probability, but again, it depends on how much risk you're willing to take. Them saying they're new/having a site doesn't prove anything, anyone can do that.
Having said that, everyone starts somewhere, and all the well reviewed providers here started as newbies with 0 reviews. Someone's gotta be the first one to take the plunge. Some may argue to leave that to a "seasoned pro", but again the risks are the risks, and if you do thorough research as a newbie, nothing's stopping you.
What I WILL say to look for/try, if you really have your heart set on this provider over someone with more reviews:
a) does she have an active presence on the boards? How does she come across if so?
b) if you're willing and she's willing, maybe arrange a quick public meeting first, say a 15 min/half hour coffee meet. You'll both have the comfort of knowing the other person's real, see if the chemistry is there, and it'll make setting up a full appointment a lot easier.
