Although this gun looks very much like the HVLP that you are looking at it sprays much better than any other HVLP that you can get at HF. Google reviews of the part number and you will see what I mean.
http://www.harborfreight.com/high-vo...gun-66222.html
I bought a couple a ways back when they were on sale for $20 but since then HF must have realized that they had a good item and the price is now normally $60 but I just checked and it is on sale for $40.
My son bought one of the cheaper HF HVLPs and used it to spray filler primer on his car and although the gun looks just like the 66222 I can tell you that it doesn't shoot anywhere near as well.