I have a PhD offer from a low university. The Professor has good publications, but his doctoral students and the university students are really low qualified. For example, the students have no IT nor Math skills and I couldn't find anyone working at a notable company. I really fear that going there would actually lower my education.
However, I have no better alternative so far. I have some other applications I would possibly prefer, but they will not be decided in the next weeks and I dont even know for sure whether these would fit better. It may be that I end up with nothing after all.

My father says I should wait for a better offer and take the risk to reject. My mother says I should be happy for some easy time there and no need to go for top education, rather just get the PhD and chill out.

Now I think they both right and can't decide. Maybe someone had a similar problem or experience, for advice?

E.g. I noticed a similar situation here http://academia.stackexchange.com/questions/9039/how-to-deal-with-the-frustration-of-doing-phd-at-a-low-ranked-university

Answers would be really appreciated. Thanks