This is my fourth Bunn coffee maker. I have always liked how fast coffee making was with a Bunn.The last two I have had have been a real disappointment. The coffee pot has permanent water marks etched into the coffee pot.It also has brown stains on the sides - can't get off. On the outside of the coffee maker itself there are corroded water marks thatdo not wipe off - you have to scrape the build-up off. When you slide the top to pour in the water - there gets to be a build-upof water that gets just crusty. When this is scraped off it just comes right back. I have to ream the coffee maker out monthly ormore since it slows down so much and takes 20 min. to brew a pot. I do the vinegar treatment and then have to brew about 10 potsto get rid of the vinegar smell/taste! So totally unhappy with this coffee pot - I will not buy a Bunn again. The qualityis just poor. They used to have such a reliable coffee maker. Not anymore!