Kevin Slowey is often compared to retired Twins' pitcher Brad Radke. Not known for being a super flashy stud, but rather for his command, control, and abilty to help his team compete. Last year with the Twins he won 4, lost 1 in 11 games, pretty decent K's (44 in 66.2 IP), a 4.72 ERA and a respectable 1.40 whip.
Will he pan out? Time will tell. The Twins' bats are well known for going to sleep for periods of time, but my personal opinion being a Twins fan from MN is that he'll only be getting better with more experience. He's approximately 23 years old, and the Twins organization is typically good in helping their young arms bloom to their potential.
p.s. I wouldn't use the word "bum" to describe Slowey by any means, myself.