I actually used a more recent edition of Rick Steves' Switzerland guide on my vacation, but I'm assuming there aren't that many changes. I generally give Rick's European guides 5 stars, but this one only gets 4 because it had absolutely nothing for Basel, a city in which I had a whole day to spend. It was frustrating to not have my usual great information for this destination, and what I found from other sources lacked Rick's humor, personality, and just great details.
Thankfully, I followed Rick's advice to visit the small medieval town of Murten (a half hour from Bern), which ended up being one of my favorite spots of the whole two-week trip! The sections on Murten and Bern, where we did his city walks, were great, and I hope to have opportunities to use the chapters for other Swiss cities in the future.