Brewed coffee is at a perfect temperature - where most brewers fall short.  Coffee is made very quickly & coffee grounds are well saturated.

High price.
Bottom plate that carafe sits on must be perfectly positioned for the unit to work.  It is frustrating because it sometimes takes several tries to get it to fit.
Four ounces of water stay in the bottom of the tank after brewing & this water is recycled during the next brew.  If you turn the unit upside down to drain the tank (to use fresher water), you have to add the extra four ounces to your regular brew to get the strengh you want.

I frequently make coffee with a "Hario" manual coffeemaker. It works very well if you are careful about estimating water temperature, but I needed a coffeemaker that can make several cups quickly for company.  I had previously purchased an $80.00 Hamilton Beach coffeemaker that only lasted one year before the pump gave out. The replacement was a cheaply-made Hamilton Beach that produced inconsistent water temperature; sometimes it burned the coffee, other times it wasn't hot enough.  I've also owned a Cuisinart ($120.00) that produced coffee with an awful burned taste.  After adding up what I've spent on coffeemakers that didn't last very long & didn't make decent coffee, I realized it would actually be more economical to purchase one good coffeemaker with a long warranty.  After all, a lower price is meaningless if you have to buy a coffeemaker every year & you don't want to drink the coffee.

I don't have a water thermometer but the water temperature must be spot on because the coffee tasted great even before I added half & half & sugar.  It was also hot - the way I like it.  I heat up the half & half before adding it to coffee.  I also heat up the cup by putting boiling water in it for a couple of minutes.  The provided "Brew Through" lid for the carafe is a great feature - it keeps the brewed coffee mixed while minimizing heat loss & you don't have to loosen it to pour coffee.

I'm rather picky about coffee taste. I tried the Willoughby's French Roast coffee (two pounds are included) & it's very good.  It takes some of the edge off of the high price of the coffeemaker.  Two pounds of quality coffee beans would cost around $30.00.  If you add up the $75.00 in extras (100 paper filters, a steel filter, descaler, scoop), the actual price of the coffeemaker is around $225.00.

I learned something the hard way: There is one part called the "Outlet Arm" that you must NEVER touch while brewing because it gets REALLY HOT.

At first,  I was concerned about the unit being defective when I noticed that four ounces of water stayed in the bottom of the tank after brewing stopped.  I started getting into the habit of turning the unit upside down & draining the tank after brewing, which results in four ounces of water not getting to the grounds.  The seller (Willoughby's) explained that it's normal for four ounces of water to remain in the water tank & most coffeemakers will do that.  I contacted Technivorm-Moccamaster Inc & they explained that the water left in the tank prevents the boiler from boiling dry.  It is only necessary to turn the unit upside down & drain that water if the unit will not be used for a long time.  The unused water will be recycled when the coffeemaker is used again.  That is indeed correct.  I tested the unit without draining the water & 12 oz water = 10.5 oz coffee (of course some water is lost in the grounds).

I purchased the unit from "Willoughby's."  It was shipped on time.  Their customer service is adequate; my calls were returned in 1-2 days and the person I spoke to was knowledgeable.