TestTaker Practice Exams

Has anyone used http://www.testtakeronline.com/catalog/pmp-certification-exam.htm . I took the free mock exam today and it seems to be really good. I am looking for a really good one because I have already taking Rita v7.0 three times and I am starting to get dup questions. I have also taken the 75 q's Oliver which is very good. Just wondering if I should drop $25 on testtaker or not. I am also looking through the notes one this site. I wish I had found this sooner, it would have made my studying easier. I reexamine this Saturday and I am wanting to take as many quality mocks as I can. I failed the first sitting yesterday due to some personal issues that just had my brain elsewhere that day.