A wonderful 'travel' machine, which is usually what I use it for. It is small and solid, and by wrapping the cord around the pot handle it stays together well.
The filter holder and pot fit together by twisting them, and the brew stop is built in to the very top where the water comes out.
Water temperature is very good, as is the lack of dripping and sputtering. Simple on/off switch, and a nice easy to see water level indicator. Being so small I've never held coffee in the carafe for more than 15 minutes, but it was kept very hot. Not enough to cook it again.

None, considering it is designed as a 2 cup machine.

I like this little pot.  It is very sturdy, not at all flimsy or lightweight.
The carage is well designed, easy to pour from and made from thick glass.
The filter/coffee holder becomes part of the carafe assembly during brewing, because you twist them together when you are ready to brew.
Brewing time is fast, maybe as fast as I've ever seen for 2-4 cups.
It makes an honest 2 large mugs of coffee.
Cleanup is simple, and again because of the solid construction easy to do.  
Water is poured into a large tank area, making it easy to fill.

This is not built to the standards of a cheap coffee maker.
If my ratings seem high, it's because this is an impressive little pot.

long ago and far away- can't remember actually.