Do "online divorces" work? Please help ASAP

Today my wife (of one year) and I decided to get a divorce.  I live in Wisconsin and am a Wisconsin resident.  I've seen a lot of websites saying, "Get divorced in 3 easy steps" and the prices range from about 250-300 bucks.  The site states you'll initially answer some questionaire like questions, the site will then plug those answers into the appropriate filing forms which either you can print out or will be mailed to you, then finally you take those papers to your local courthouse to file (which costs you) and then you wait for the court date.

This is my first marriage and first divorce.  Am I being naive to think there is such as a thing as a "cheap divorce online?"  Both my wife and I have discussed how joint debts would be paid and how property would be split.  We have no children together.  So we don't have any issues of contention regarding how the split should take place.  With going through such a site be as relatively quick, painless, and clean as they make it sound?  Thanks for any advice in advance.