I have my problem battery clamped over the weekend, the operation of the CTEK is virtually foolproof, and the battery was charged and easily done even now without problems back to their service. With luck, I'm so really come around it in a battery initial purchase.
The long-term test I can not judge, of course. But I am so far satisfied. I'm still going to buy in addition to Car Charger, as the plastic is quite slippery.
The manual is quite simple. But for my purpose it says enough to select the operating modes in accordance with and to use.