I use Kaspersky for years and am fully satisfied. In my 3 computers (PC Gamer, notebook anyway small Arbeitsnetbook) runs everywhere Kaspersky 2012 and so far I had no problems. Neither the computers were slowed down or charged too strong (very important for me, I once had a bad experience with GData ...) nor any malicious software has lost on my system (or I was duly prompted and could remove the culprit) - however, I know where you should click on it, and where better not. So I would definitely describe myself as a competent user and maybe that's why I offer an anti-virus software is not much work ... Since I am often asked in the circle with PC problems for advice or equal to install the computer zusammenbaue & Software, I also have these people always advised to Kaspersky. Also, since there have been no problems, so even inexperienced users come with the program deal (if it settles properly before) Probably there are other good protection programs, but has so far not ausprobiertes of me (Avira - hands off! Ok, GDATA - - very slowly, Norton) Kaspersky candle.
For this I have to say that I do not use all the functions. The Parental Control I for example never tried and also such functions as "activity traces" I do not use (if necessary then manually)
The Mobile Security for Smartphone Although I have installed (Galaxy I, Android) and also had as yet no problems (a little performance degradation - can probably not be avoided), but if you currently really need, but I very much doubt. I just bought this combination package, because it nowhere two PC licenses was as low and if something more is, you take the course, like with. The 5 star rating thus relates only to the PC version.