Inexpensive, simple, appealing

This device is intended to replace an upgraded clock thermostat with touch screen, a panel unresponsive in which after only 2 years.
In my view, this simple thermostat has the following advantages:
-The Programming is done via buttons with good tactile feedback.
-From / Timer control / manual mode are a good latching slide switch quickly and even for those without instruction manual
to realize.
-The 24 switching cycles are fully adequate for underfloor heating.
-It Can be programmed 3 different temperatures (for Normal mode, reduction mode and manual mode).
-The Hysteresis can be selected in 0.5 degree increments.
-The Display is easy to read in the illuminated and non-illuminated state.
Bad points:
-Unfortunately Only the eight numbered markers are performed in the watch dial. The illustrated small hours strokes
it has saved.
-The Included very short manual is not active at all points, thereby creating confusion.
-The Cable additionally available external temperature sensor is extremely inflexible and almost impossible to flush pipes
collect.