Most of Willo's kit relies on area denial. After Seedling or Dead Zone have been used, it's better to stay out of reach. Remember that she has quite a large cooldown for those abilities!
Inara's Impasse has very high health and can be annoying to take down, especially without Bulldozer. If the enemy Inara happens to use it near the payload, remember that if the payload touches it it will instantly be destroyed.