Haven't done Level 18 yet, so I'm doing 19, if that's okay...
Level 19: Wait and See...
Save 90 out of 100
Release Rate: 75
1 Climber, Floater, Bomber, Builder, Basher
Time: 1:35
Good: There's some precision required, but the level's quite fun compared to the previous hard levels.
Bad: The solution stands right out at you, unless it's a backroute. I'm not sure, as I haven't used the climber or floater.