Since you don't use Cubase, I would imagine the differences don't stand out to you - and that's great! Ignorance is bliss as they say. If S1 does what you need without limitation, embrace it. There's not much value in asking others "what features are you missing" unless you have a direct connection to Presonus somehow. Plenty of the limitations show up in the S1 feature requests. I own the latest versions of both along with Logic, PT, and Ableton. Due to that, I get to see the pros and cons of each. S1 is improving, but still has a way to go (articulation maps were only just added, but are very basic, their macro functionality is also pretty basic compared to Cubase, it has significantly worse CPU utilization on Mac, Cubase has way more advanced marker tracks, the UI customization and color choices are still piss poor, external controller support has been lacking for a long time, the MIDI editing is still not as good as Cubase, etc). I don't have time or interest to list out every limitation I face in S1 - because I don't care to use it now compared to Cubase (or more likely, Logic).Which limitations do you mean? I've been making orchestral mock-ups with Studio One for 8 years. And I agree that there were BIG limitations in terms of MIDI editing and template work in version 2 or still in version 3. But I don't notice any limitation anymore... all my bigger long-term feature wishes have been added in version 4 and finally in version 5.
To the OP, both have demos - try them and make the decision for yourself.