IF you get the right XA they are great little cameras
you want the original XA which is fast aperture, true Rangefinder 6 element lens
the XA1/2/3 are all zone focus variants with lesser lenses.
the rare XA4 is a wider angle model with a zone focus macro 5 element, still not an RF but a cool little camera nonetheless with a 28mm wide angle letting you get in close
Steven Goudy has a nice page on the 2
Olympus XA and XA4
and there is a site dedicated to the XA
The Olympus XA Camera
Flashes are next to useless on them so i wouldn't worry whether it comes with it or not (if you can save a few bucks and lose the flash then do so in other words)