Pros
The only pro that I can think of is that once in awhile they will have a decent job to offer.
Cons
The people that work at Express Pros Employment (at least in my location are some of the rudest people I have ever spoken to. They got me a job that was to last a month, however I injured my foot to the point that I would not be able to do the job an longer. I called and to inform them that I would not be able to finish the job and that I was very sorry and rather than express any sort of compassion to the fact that I had been injured they got all pissed off that I didn't call in earlier. Admittedly I should have called in sooner, but the fact that they didn't seem to care at all about the fact that I was injured while on one of their jobs was absolutely astonishing. Unless you are absolutely desperate for employment and can't go through another staffing agency I would highly recommend avoiding Express at all costs. I have gotten nothing but rudeness from them from day one.