Insurance okay?

Hello dear ones, I am looking for a new car and I have the Seat Leon FR 1.4 with 122 hp in mind. What can you report about experiences? According to ADAC a top car. I already had an offer from the insurance company: comprehensive, contribution rate 35% (SF9) with SB of 300€ should cost half-yearly 344€. Since I currently only pay half-yearly approx.150€ partial cascade (Opel Astra H GTC BJ 2007 105PS) and I don’t know in this respect, I ask you now if the 344€ are a “normal” house number. Achja per year I drive about 20 000. Thanks already for your answers )