Down here in the deep south our worst enemy is DISEASE among the tomatoes...fungal, bacterial, blights, rots, exploding stars, alien invasions, monsters from the deep, etc.,.
What I've found is that the cherries just don't seem to be as susceptible to these horrors as regular-size tomatoes are. One exception is Bumblebee tomatoes which are larger cherries...I tried two different varieties of these in separate seasons and both grew to be about 5' tall until I walked out one day and they looked like somebody had took a flamethrower to them!!!
Early blight of some kind.
For me, the Cupids have done extra good...dodging disease, they taste great, a little larger than regular cherries, and if taken care of they'll produce a bumper crop!
I'm not sure how these will produce in cooler climates, though. They *are* indeterminate plants and will get pretty big.