On my 2023 my dealer told me that they don't recommend the honda oem heaters and prefer to install Inferno Max which is what mine got. I would assume that they must be somewhat reputable in that regard because they would make more money selling the oem heater than the inferno because the install is so much more intensive with the oem heater and the inferno must really be better. With the oem hard cab so far, although it hasn't been bitter cold here in MN yet, I have found it to be good so far. After 20-30 minutes on high I will usually get warm enough to turn the fan on low. The bigger issue is the leaky cab and all the cold air that comes in through the shifters and everywhere else.