I don’t mind pench. It’s good that people are interested and talking about them.
I pay in 25% in total - 15% from employer and 10% from me. It’s only been in the last few years that I’ve upped my contributions. The impact of the compounding is now really noticeable though, when I check my pension account.
My tip for defined contribution pensions is don’t assume the default fund option is the right one for you personally. They are often too low risk for people who expect to be working and contributing another for ten years or more. Do your research - a couple of hours online - and review your options.