BritGal - if more customers were like you, less students would be scammed. Your over-cautious approach is perfectly understandable and, given the proliferation of less than legitimate companies throughout this industry, warranted.
As WB told you:
The copy on their site is atrocious. Why would you use an "academic editing" company owned by people who don't have the basic editing/writing skills to recognize the embarrassing errors throughout all of their OWN site's pages? Remember—that's their BEST work (unless, of course, their goal is to NOT attract customers).
I went through their webcopy and it is not very reassuring.
1) weak English
2) free dreamtemplate.com template
3) no real contact info
4) "About Us" is awfully uninformative
5) Misleading "as seen on CNN, NBC, etc ..."