I do not know whether their offered service would give anything of value. But I would not use it because they use "ISI", which reminds of the former Institute for Scientific Information (ISI), the first which did scientific citation indexing (https://en.wikipedia.org/wiki/Institute_for_Scientific_Information). Using labels reminding of serious institutions is usually a sign of being dubious.
I agree with Wolfgang R. Dick that this looks very much like an attempt to confuse people by borrowing the well-known abbreviation for the Institute for Scientific Information -- which was the original publisher of the Web of Science and the creator of journal impact scores.