So far (only had it a week), I have been quite impressed by the brew speed, brew quality, build quality, and simplicity of this drip brewer.
Negative Product Points
Judging from some other reviews, the quality from machine to machine is apparently inconsistent. The filter has not overflowed on me yet, but a full pot comes within half a cm of the top of the filter, so it is a potential problem. It would be nice to have graduations on the inside of the carafe for cup measurements of less than a full pot.
I have owned a few other (mostly conical filter) drip brewers. I was ready to replace the most recent one when it started leaking water all over the counter top whenever I brewed. I read about how the Bunn machines have a steel and copper water path, which seems like it should last longer than the plastic lines that leaked after a few years for each of my last two brewers.
I ordered the Bunn new from an ebay dealer online. It arrived in the mail and I had it set up and was enjoying coffee from it in less than 30 minutes. The build seemed substantial and I expect it to last for quite some time. That said, the availability of parts was another consideration that influenced my purchase.
The first thing to impress me was the perfect heat of the brew--that too hot to do anything but sip lightly, drawing in a lot of air with the small bit of liquid at first. The thermal carafe does a good job, and after more than two hours, the coffee is still hot enough to drink. I have not tried pre-heating the carafe, but haven't needed to. One parameter that I have noticed to affect how long the coffee stays hot is the volume in the carafe; a full pot will stay hot for over three hours, while if there is only a few cups worth, it will cool more readily.
The brew is full and rich. I noticed others commenting that they could not make it as strong as they would like because it overflows the filter. I have been using 10 level tablespoons for a 10-cup pot with a medium drip grind and have not had an overflow yet. I must say that the grounds do come very close to the filter top. Perhaps if I used a finer grind, it may cause problems. I am still using the included Bunn filters so I am not sure whether others would cause--or help prevent--overflowing. I also tried a pot of pre-ground flavored coffee that worked fine. I have made as few as 20 oz. which brews up full-bodied, as well.
The brewing is quick. I timed a full pot and it took right at thee minutes for the water to run through, then about 30 more seconds for the basket to quit dripping. And, talk about simple, there are not even any buttons to push. Pour the water in the top, put the carafe under the basket, and close the lid. This sequence is intuitive to me, but apparently not for everyone. The brew begins flowing within seconds of closing the lid, so it is important to have the carafe in place before closing the reservoir lid.
Overall, I am quite happy with this machine. I don't think that my review of this coffee maker is biased by the bunn reputaton and high-ish price. My wife, the eternal skeptic, was looking for someting to complain about when she found out how much I spent on this drip maker. But she has been as happy as I am with the quality of the brew. If it lasts as long as I expect from the appearance of the build quality, I will be happy for many years.
I bought this from an ebay seller. The coffee maker was new-in-the-box with a three-year factory waranty, despite the discounted price; $85 vs about $130 in the local store. Shipping was quick and problem-free.