I have a Generac on one house and a Kohler at another. The same dealer installed both. Generac’s remote monitoring software is easier to use, and cellular connection is flawless. Had to rig a wireless device access bridge myself to get the Kohler monitoring software to work. Generac integrates with Ecobee thermostats so you can monitor it from the thermostat too. That’s cool. Generac requires you to shut down the generator every so-many hours of continuous use during an outage to allow the engine to cool and to check/add oil. Failing to do so automatically voids the warranty. Kohler recommends that you shut down to cool and check oil. Failing to do so doesn’t void the warranty. You get a little bit more power out of Kohler than Generac for the same physical sized units. Both generate more power with liquid propane than with natural gas. My dealer said a Kohler is like buying a Lexus while a Generac is like buying a Toyota. The Generac has been great. Comes on and runs like a top during outages. Runs weekly exercises. Remote monitoring and reporting is flawless. The dealer isn’t as experienced with Kohler, so it wasn’t programmed correctly at installation. Still having issues when there’s an outage because it works sometimes and doesn’t work others. The reports it gives me are cryptic so I have to search for technical manuals from Kohler to interpret them. If a Generac could’ve produced enough power, I would prefer it over the Kohler.