I have had one for several years for my caravan. It heats up very quickly and the heat output even on the low setting is very good. So I have bought a new one for home. The new one now has a built in timer which is very useful.
This is an excellent product, and good value for money. Will be buying another one soon to replace one that we have had for more than ten years. This type of heater has come along way in that time. Would recommend.