I bought the 6" Rikon benchtop jointer, model 20-600H, a couple of years ago. This is my first jointer. At first, I was very happy with it. Out of the box, it performed very well. Then I left it on the shelf for several months before using it again. When I pulled it out, the tables were misaligned and needed to be adjusted. I spent a lot of time aligning the tables, using the four screws on each table. Using these four screws is a very time consuming and frustrating way of aligning the tables. I have since learned that most jointers do not use this method of aligning tables. So I got the tables aligned and was able to use the jointer. I then put it back on the shelf. About two months later, I pulled it out to use it again and again the tables were misaligned! I spent a lot of time trying to align the tables before finally accepting the fact that I now cannot bring the outfeed table into alignment with the cutter heads! The front of the table is fine, but the back of the table is higher than the cutters even with the adjustment screw at the end of its travel range. I cannot bring the back of the table down any lower, and it is still just a bit higher than the cutter heads!!! This makes the tool useless. Using my straightedge I can also see that neither of the tables are completely flat. I realized it was like this from the start, but I was able to make good cuts so it was not a problem. Now that I am having the table alignment problem, this is just that much more frustrating. Also, the HSS cutters have worn out much more quickly than I would have expected. They now leave ridges all down the surface of the wood, instead of a nice smooth surface. Given how infrequently I use this jointer, I would have expected them to last longer. Repositioning them to a fresh edge is easy, but they only have two cutting edges instead of the four that other jointers have. Not to mention that Rikon sells replacement cutters in packs of 10, while the tool actually uses 12 cutters!!! I am extremely disappointed in Rikon. My perception of them in the past is that they produce quality products for a bit less money than companies like Jet. I have a Rikon benchtop bandsaw and a Rikon benchtop belt sander. I have never had any problems with either of those tools. Anyone else have problems with this jointer, or one of the identical ones sold under different names?