Of course, Shaw has a longer track record of good pitching. Last year was the first year where Swarzak was a very good reliever. Split between the White Sox and Brewers, he notched a 2.33 ERA over 77.1 IP with a 4.14 K/BB ratio. And Swarzak has previous experience with new Mets manager Mickey Callaway, having appeared in 10 games with the Indians back in 2015.
Swarzak is a fastball-slider guy and his heater checks in with an average 94.7 mph rate. After getting killed by the gopher ball in 2016 with the Yankees, Swarzak did a strong job of keeping the ball in the park last year, allowing just 6 HR. Perhaps the nicest thing is that last year lefties had just a .575 OPS against him.
Can Swarzak duplicate last year over the next two seasons? If so, then this is a very good deal. This likely takes the Mets out of the running for a reunion with Addison Reed. But that was always an unlikely event.