As an everyday firearm, this is by far one of lightest and best handguns I have ever owned. Of course, I still own a large capacity handgun for warrants. Everyone has their opinions and preferences (I still own a Glock 26) but this fits the bill for routine plainclothes & undercover law enforcement.
I have had the P365 for over a year now. It is hardly noticeable on the ankle (during flights) and removes a huge strain on the back in a normal waistband holster. Recoil is negligible (really). Additionally, given the small profile, it is very concealable under a t-shirt or polo. The obvious downside is the capacity; but at 10+1, it feels like the bullets are housed in magic baby gun. Just like anything Sig, be prepared to pay up a decent amount for the hardware. (FYI-During quals my hand does have a tendency to hit the slide release; a commonly reported problem.)