I love our little Everstar Portable Heater for quickly heating up our small bathroom on cold winter days! Our bathroom gets a little chilly since it is further away from the heat source (wood stove) than all the other rooms. Typically I plug this in about 15-20 minutes before planning on taking a shower and it takes the chill off the room, making it much more enjoyable to take a shower. We did notice a slight increase in our electric bill, but for the convenience and niceness of having a warm bathroom vs. taking a shower in a cold refrigerator like room, we feel the cost is worth it. Durability We have been running this heater for about a year now with no complaints. Design Simple and easy to use, no complicated electronic buttons, not a vast amount of choices for settings, sometimes simple is better! Safety I don't notice that the exterior of this heater gets super hot, but of course it is always best to keep away from any flammable items.