I used my Blitza bommer in 2 games over the weekend. It was the star of both games, killing beakies and dark panzies with every bigbomm. No rolling to hit, just roll 10 D6, mortal wounds on 4 +. The supashootas were just bonus. Right now it is a must take.
Just make sure you roll the correct number of d6. To roll 10 the unit must be a least f 10minis. Hardly a unit erase, although it will dash some pain.
Still prefer the dakka Jet