I'm with you, hill repeats are not my fave either. But, I've found that even once a week can make a difference. For lazy runners like us, I think shorter, steeper hills are the way to go. Less time suffering, but still get the benefits. Try 3-5 sets of 3-5 minutes at max effort, with 2-3 minutes of walking recovery in between. That's my lazy runner's hill repeat recipe 😊