A lot of services say that they send the press releases to thousands of publishers, etc.. That doesn't mean they will go to thousands of sites. You will get a few links if you write a quality press release, but more importantly you can gain some serious traffic with a well written press release.

Nope your not the only one submitted in the press release. But you have a guarantee that you have a lot of visitor but oh well we dont know how many or the number will visit your site