I had 2 new razors put in my wash in 2018, they were pretty full proof after intial setup quirks. Just like any type of machinery as time goes on there are typically little faults, honestly haven't had much down town with mine. The worst, as with any equipment, are just intermittent issues that take a little while to actually trouble shoot because you can't replicate them. So far all I've had to do is regular maintenance, tighten a belt here and there, a couple sensors (home, star wheel, trolley position, and a couple relays inside of the cabinet). All in all way more reliable than my SideTrac was but those were 14 years old at the time and had issues non stop. They've been great machines thus far, and when I upgrade again I will probably stay with WW due to their customer serivce and ease of usage.