I earlier had the Philips QT4000 trimmer, but the battery backup was not good so I bought the QT4011 trimmer from Philips by Amazon.in for around Rs.1800.
This trimmer is far better than my earlier one and others also. When I am in a hurry and the battery is not charged, I can plug it in and use it at the same time. Also it gets charged quiclky.
It has got 20 lock settings and 0.5 mm precision. I ussually make a stubble of 1mm. But 0.5mm stubble also looks good.
The comb is easily removable and the motor can be washed and cleaned with the brush provided.
Whenever I have to give some detailing to my beard I use the trimmer without the comb, and it is also comfortable. I havent shaved using it ever, but it can be used for a little detailing, without the comb.
It is a very good trimmer in the price of Rs.1800