I bought my wife a standard P365 because she wanted a small automatic for pocket carry plus she could work the slide without issue. I liked it enough I bought another one for me. On my own I would have preferred the XL for the 3.7" barrel but I wanted both pistols exactly alike for the same user interface, magazine compatibility, etc.
We probably have 500 rounds thru the pistols so far without any stoppages. That's a mix of any kind/brand/weight of ammunition I could find during the Last Great Ammo Shortage.
I believe the X uses the XL length frame but with the 3.1" slide. They used to come with 3 magazines but I'm seeing the current tacpac might come with only two. That's worth 50 bucks if you can find an older package with 3 magazines in stock somewhere.
The X has the sight plate if you ever decide you want a red dot. Better to have that option than not I would say.
Probably the most common upgrade to the 365 is adding a flat trigger. The X comes that way from the factory. That's 42 bucks for the parts and an installation charge if you don't do it yourself.
The only downside I've found so far to owning a 365 series pistol is loading the magazines. My wife couldn't load more than 6 or 7 and I had difficulty going past 10. I solved that problem by getting two of these:
The UpLULA® loader is a military-grade, pocket-size, universal pistol magazine loader and unloader designed to load and unload virtually all* 9mm Luger up to .45ACP single and double stack magazin…
www.maglula.com
I bought them from Midway so I wouldn't get fakes.