We use it probably 5-8 times a day for tea water. Usually just above minimum or midway full pour it in the glass when it's done and then pour the rest out and let it dry before the next use. We've only had this particular model for about 2 weeks, we bought it when a similar companies kettle had a piece break off.
This model tends to not release the steam as much so when you're pouring the excess out and you pop open the top at the end to make sure it's all gone you need to sort of angle your hand so you don't steam yourself. Otherwise it's awesome quick heating super simple process to use. You just pour the water in to the desired level close the lid drop it on the stand and click the go switch. Takes a couple minutes usually just depends on how much water you put in. 9/10 would buy again if the quality maintains through the life of the product.