Pros became pros because they MADE time to practice. They started out with exactly the same time everybody else has. No-one ever gave me a 25 hour day or an eight day week

Instead of mindlessly 'relaxing' with an auto-orchestra, that exact same time, used well, means that the NEXT time you 'relax' with your arranger, you might play better than last time, rather than spending countless thousands on new gear, so IT plays better next time while you still play the same old licks.

You don't become a pro until AFTER you do the work. No-one comes up to you and says 'OK, you're a pro. Now take the day off to practice so you can be good enough to be one!'
_________________________
An arranger is just a tool. What matters is what you build with it..!