Hiya. Welcome to SDN.
Yes, I was in a similar situation: I had three years of coursework with narrative evaluations only, no grades (and hence no GPA). I did have one year of grades, though, and some graded post-bacc work as well.
Never had the slightest problem. During an interview, one interviewer did pull out my transcript, which was about 20 pages long since it contained the full text of all the evaluations. He said something along the lines of "This is the longest transcript I've ever seen. Am expected to read all of this?" I told him he was not obliged to, although some of it might prove quite entertaining. And yes, I was accepted to that school. Nobody else even mentioned it.
Good luck!