I like our warm air heating, made by Johnson and Starley over 30 years ago but spare parts are still available..
Disadvantages are the fan noise as it cuts in and out, not all the rooms are heated. The room temp does tend to rise and fall as the fan kicks in.
Advantages, heats up very quickly, clothes drying is nice and easy, just put a clothes horse in front of the vents a whole load dry in hours..
An the gas bills aren’t that bad..
But saying all that I think it will be soon taken out and replaced with a wet system, unless I can convince ‘er indoors to update the warm air to a more modern one.