I replaced my Faberware percolator with one of these after the Faberware finally gave out after 8 years of daily use. Whilst it brews a reasonable coffee (and cost 1/2 the price of the unit it replaced), that cheaper cost comes with a few niggles that are worth mentioning. Whilst I mention these flaws, I still use it for my everyday fix, with no real intention of replacing it (at least until stops working).
The lid does not fit securely, so that when you pour the last bit of coffee out of the unit, you spill coffee from the lid.
Something about the design (presumably the keep-hot feature) means that when poured the coffee is just slightly too hot, leading to more bitterness in the brew than needed.
There is no on-off switch - you have to unplug the unit from the power cable to turn it off. This will no doubt lead to wear and tear on the AC contacts over time (at least for daily use as in my case).
You have to take care to make sure that the percolator stem is fitted correctly into its receptacle in the unit - otherwise you just end up with a kettle filled with almost-boiling water. You then have to cool the unit down with lots of cold water before attempting to re-brew. I've had this happen 4 times in the last 6 months with this unit - it never happened once with the more expensive Faberware in 8 years.