here's my test of it just now with my most recent sale...
a domain I sold a few weeks ago
leapfish appraisal=$32
sold for 1,000
automated tools are fun but not usually going to give you an accurate picture as a lot of value is placed in the name itself from an end user and an automated program can't accurately guess what a domain is worth to that end user or how much value backlinks and search results mean as well to that buyer, fun to mess around with but I wouldn't set my prices based on it's results.