My Friend’s son services those machines and he told me he would never trust one of them to count his money. He said they often undercount due to jams and foriegn objects—some pretty disgusting. He also told us that he typically finds hundreds of coins in the bottom of the machines which dropped out of the handler which likely were not counted. Manual coin sorters are very inexpensive, even automatic ones go for as low as $175.
There are 3D printing files available for coin sorters that are free to download.