I got this as a wedding present about 4 years ago and have used it a few dozen times.  First off: Never any blue goo.  Someone else mentioned the paddle not attaching, it can be a little odd figuring out which side is the 5qt side and which is the 6qt but that trial and error and takes maybe 10 seconds.  I have to buy a new one unfortunately because my apartment burnt down but other than that I am very happy with the ice cream maker.