My Ace has just turned 5 and still going strong. It was my main boiler for 4 years and then it’s been a sparge water heater since I got my BrewDevil.I've got an old (single wall) Ace boiler which has been very good over the years. Always check temperatures with an accurate thermometer though as the thermostat control on mine is miles out.
Same here - 116 brews in total. The `on' light blew fairly early on which I haven't worried about. No other problems.My Ace has just turned 5 and still going strong.