If it is just plain vectors with no RGB effects like shadows, transparencies and extreme colour fills it will export to illy no problems. If there is loads of text then it will not be editable at all as each letter will import to Illy as a shape. Other solution is to export as a PDF then you will have all the text still editable. Have no experience of P & G Designer 9 but have 2013 and both, PDF and .eps, export to Illy CS 6 without problems because up until fairly recently all my basic work was done in D Pro and then taken to Illy for finishing with my job.