Reliability Problem with Linn Genki?

Is anyone else having problems with their Linn Genki? I purchased mine used. When it arrived, the display showed Err messages, the unit made plastic "grinding" noises, and it also had tracking problems. I sent the Genki to the Linn service shop in Florida and paid them $550 to replace the main board (the seller was kind enough to pay for almost all of the costs). Less than three months later, it started having similar problems until it finally died. If others are having similar reliability problems, please let me know so that I can cut my loss and purchase another brand.