It is familiar. I carried off flight line, sometimes.
There are millions of them and clones so parts are easy to come by.
The Hi Power was a rework "improvement."
It needs a beaver tail to prevent hammer bite as does older 1911s.
There is a Hi Power with a beaver tail now.
Only available in 9mm, others in .40.
1911 availble in 9mm ,.38 super .40, 10mm, .45 and some closes in higher power .45cal offshoot versions and 9x23mm , and probably sme others I don't know of.
It is just familiar, easy to work on, find parts for, customize and so on.