I'm a dedicated lap swimmer year-round. It's so nice to have an outdoor pool to take advantage of (nice weather or not, darn it) during summer months. The only disadvantage is that on hot days, it's INSANE - there are way too many people just ""bobbing"" in the lap swim lanes (annoying because I've paid $4 to WORK OUT in here, people!). Not to mention the swarms of children and their parents rushing the pool as soon as public or family swim starts and lines of kids gawking at you as you try to shower and change. Don't get me wrong, though, it's worth the frustration to swim outdoors on beautiful Seattle days.
Cons: gets WAY too busy on nice days