That's how I do it. It took some time to build up the trust relationship, but most of the time, our stakeholders and me can keep a good balance of maintenance and features. And this balance doesn't have to be rigid. I want my maintenance tasks done, but it's fine to prioritize deliverables for a sprint or two - we'll have a sprint or two of maintenance then. And that might be fine, or even beneficial, because then you have a bigger block of time to do some bigger cleanup tasks.