Going from Cubase 7.5 to Presonus Studio One 2.6 - Insane??

I don’t think so.

Studio One was my 2nd DAW, and to be honest, I feel that Cubase sounds just that little bit of a tinge sweeter & clearer to me.
Ya gotta love the company that developed VST technology - and it’s not hard to believe that their audio engine would be top notch.

In fact, I was commenting the other day to my Mrs. on just how good Q7.5 sounds.

So probably no “audio illusions” that I’d say.

I’m finding my workflow to be very fast in Cubase - and I’ve only had it since June/July, but didn’t really get into it until Dec. and especially from last month onward.
[I didn’t even have time to open any DAW between Oct. - late Dec.]

Many are happy with Studio One, and swear by it.

For me though, 3rd time’s the charm.

Q7.5 is my 3rd DAW & I’m lovin’ it!

Not all that much mouse clicking, now that I’ve got my Key Commands set up with the aid of my CMC-TP.

But you’re [OP] not insane to go for Studio One.

Many eventually try it & love it. Most seem to stay with it once the do.