...I just bought this machine for my girlfriend's new kitchen. The water sensor in the water tank does not stay in place. Therefore, the machine cannot make coffee because it cannot determine whether or not there is any water in the tank. There is a tiny plastic cap that should hold the sensor in place. The cap doesn't clip in, and floats away as soon as the tank is filled. Therefore the entire machine doesn't work.
3) This machine is crazy smart. It knows exactly when to clean itself, or tells you when to start the cleaning cycle. To clean it, all you do is insert a tablet in the coffee powder drawer and it does its thing. It knows when it needs water, when the filter needs to be changed, etc. In fact, since we have a water filter built into our refrigerator, we just use that filtered water in the coffee machine and therefore we don't need to use the expensive water filters. Bottom line, if you just pay attention and clean the machine on a regular basis when it tells you to, this is a no-brainer machine.