@Holger_35Nah. She's a recon. That's the only way I use her. I don't use her for mobility much. Carry a balloon on her and every enemy in 300 meters is yours to track. Same with Ult. She's recon. She's the eyes in the skies. She does a better job than Crypto. Give her accelerants and you'll never lose track of the enemies. Jetpack just helps get on top of buildings quicker, not very beneficial.
And your hitbox size is effectively doubled when jetpacking, so no it's not beneficial. Can't tell you how many times I've died trying to do jetpack maneuvers, when in similar scenarios on toons like Mad Maggie I can escape it, no ults.