We bought a used one after using a scale all this time to count quarters. The scale only went to 1,000 grams which is $44 max so it was time consuming to count. After messing around with the Scan Coin I figured out how to make it stop at a certain count which is very handy. There is not much else we need info on except maybe maintenance. It was very dirty under the belt cover and the diameter slide would not move much at first so it would not count dollar coins. The link you gave looks like it goes to another site that wants my credit card even though it says its free to read.
The last Scan Coin 303 coin counter I bought new was only $650 with free shipping. The price of them has really come down since SUZOHAP bought them awhile back. There made in China now. There are a couple of operating good videos on Youtube.