I work from home and with the cost of energy these days I figured it'd be more economical to get one of these rather than heating the whole house with the central heating. I have it on for an hour or so first thing in the morning to take the chill off, and then by that time my PC takes over and keeps the place at a comfortable temp :) (It's a high spec PC that kicks out some real heat!). The fire is excellent build quality, looks fantastic, kicks out some serious heat, and when left in place the 'snuffer' plate works great to keep evaporation to a minimum when not in use. I throw 1ltr of fuel in it and it lasts for a good few days. The only even-slightly negative comment I could make would be that the white stones gather soot on them, which is to be expected, but they don't clean up very well. Instead they just look 'mouldy' rather than going back to white. So my advice would be - don't bother cleaning them, just enjoy the yin-yang vibes of half-black/half-white stones!! :)