I'm a big fan of paying a living wage. I'm also not a fan of tipping (just raise the prices and pay people fairly). However, I have no experience in the industry.
He has lengthy (20+ years) experience, from server, bartender, cook, and manager. (all from outside of Seattle - he was a recent transplant) He's a fan of tipping and hates the minimum wage increase.
His experiences (+ fears, hard for me to say which is which) were that: * without tipping, even with the increased base rate, it was hard to get people to show up for the short but intense crunch periods, because with tipping people are used to being able to work a weekend shift and pocket several hundred dollars. * If you aren't in a university area or someplace that would have people with flexible schedules and a need for short bursts of money, you would have hiring issues in general, because people earning minimum wage would just go to a less demanding job with more convenient hours.
One particular area of disagreement - he felt that the national chain's policies made it very hard for him to adjust to Seattle's quirks - rules made to pay $2-$4/hr didn't work here, but he couldn't change them and blamed Seattle's rules. I argued that if the business model didn't work, the answer was to change the business model, but it sounded hollow and elitist even to me (even while I still believe it).
I've talked with a few other acquaintances that have done server jobs and they all echo similar thoughts - even those that hated tipping agreed that they would use it to get a lot of cash on short notice and were skeptical that the current system would survive a transition into a flat wage. What I've not heard is any ideas on how to DO that transition, or if it's worth doing. (I have beliefs, but not facts)