Moved from a CW380 to a P365 with safety. I noted the following whiich can apply to a lot of the new micro 9's:
Size was larger, to be expected moving up to 9mm. It was not a large step, just noticeable.
Holsters are plentiful, I couldn't use the previous Pistol Wear and had to buy new
Weight - a ten round stack will be slightly heavier. So will the extra mag.
Capacity - with spare mag, 20 round minimum, which is one mag change less than a 6 shot. Thats one less required downtime or a fumble.
Manual of arms, virtually identical. The additional left side safety I installed is more appropriate for the lighter triggers we are now seeing as the makers move away from 6# + triggers. I have a Canik which is even less using a SAFE action trigger and while appropriate for a field gun OWB I would not carry that style in CCW. My experience is largely based on older guns which predominantly used safeties hammer or striker fired, which is the standard in military carry. With a CC pistol, negligent discharges are far less with a thumb safety than a SAFE action trigger. Arguable, yes, however the sad and declarative situation is they call it Glock leg.
Optics on pistols are a hot topic now, I prefer to continue with traditional irons on a CCW for weight, less chance of failure, and less snagging. It's a 7 yard target in a lot of situations, reaching out to 50m as one police study claimed. The issue for a concealed carrier begs the question weren't we supposed to be getting away from the shooter, not engaging them at distance? There is a whole lot of Walmart, mall, or gas station at 50m.
Weapons mounted lights are also a trend and for the most part the professionals are recommending a separate hand held light for adminstrative or even tactical use, primarily because pulling a weapon out of a holster is presenting lethal force - if the situation is already determined then go ahead, but escalating or making it a lethal force situation with no other other cause puts the onus on the brandisher to justify. It's being discussed on another forum and the reasoning that one side uses to justify using the WML for lighting up the scene ignores the presentation of lethat force argument. Unfortunately, do that in public and an off duty LEO or CCW won't.
I chose the SIG primarily because of the removable FCU - the trigger works have the serial number, the grip unit can be exchanged for different lengths, colors are optional, longer slides available, and cut slides for RMRs, too, without expensive gunsmithing. When I installed the safety I did the work using a 3D printed clip in jig, using the standard ambidextrous which I converted to left side only. This kind of work on the gun at home is common with SIG P365 and many do it. It's become the "AR15" of handguns because of it, which fits for me as I'm assembling my third one. It's as easy as installing a door knob or an alternator - frankly, easier. Much of that cannot be done with traditional serial numbered frames - Glocks with safeties are sold on contract to various PD's internationally but in America there is only one shop I'm aware of and it's $199. The parts for my SIG ran under $65 with jig.
You may find one of the other 5 makers in this market who gets more of what you want in their pistol, which is great, because we have so much selection. Get your hands on them and shoot some at a rental if possible.