I have found that they are very professional, reliable and quick at responding when contacted by them. They also offer great value as their pricing is reasonable compared to other services we used previously. Nothing really! Just make sure you get in touch with people who know what they're doing first time around otherwise it could be quite difficult getting things sorted out if there's any problems later down the line. We've been using PressAt since 2013/2014 so far everything has gone smoothly but nothing bad or unpleasant about our experience thus far.