The inevitable and correct conclusion on saddle discussions/recommendations is that what might work for one may not for another.

I've been riding the Arione for a couple of months now. I hated it at first, but many adjustments and time spent in the saddle later, I am comfortable with it. If the OP likes the feel of the borrowed saddle -and right off the bat- I'd say that is a good indicator of which saddle should be purchased.