Very happy with my SWICA insurance today, checked my overview. For three additional insurance I pay year CHF 729.60 (completa top, praeventa and optima), but I checked for last year, and I received CHF 670 back for my gym membership (CHF 740 - aktiv fitness), CHF 100 for the dentist and CHF 120 for lenses. And if I spend more on glasses/lenses there was still some money to be had. So actually I made money by having this additional insurance. Ok, their basic favorit model Sante is the cheapest with them, but you can find cheaper. Overal I still feel I have a good deal. And my advisor is quick to respond.
Hope this info is of use for anyone