[joshvm]

Very good, generally. It's affordable by Swiss standards, which is to say expensive for tourists but remarkably good value if you're a resident on a median salary. The cost of the whole-country annual rail pass costs less than a point to point season ticket in the UK, and there is no peak travel. So you should never pay more than 3-4k a year. Most people just get a half price card (often employer subsidised) and/or a local pass which is generally better value unless you're commuting between cities.