Yep we subscribed to it too, together with the Beobachter,the Beo is looking more into stuff that touches the legal side of things, worker's or tenants rights,inheritance and tax stuff. Whereas the K-tipp is more geared towards the consumer ( but both magazines carry other articles too)
There is also PC-Tipp, which covers all things Techie,Computer,newest soft and hardware and I am thinking of getting that as well, since my Pc crashed mightly two weeks ago

I think they are very reasonably priced for the heap and bunches of info you can get from one issue only.
http://www.beobachter.ch/ http://www.ktipp.ch/ http://www.pctipp.ch/