Along with the SIG 220, one of the best out-of-the-box .45s available in terms of accuracy and reliability. (That comment is not mean to disparage H&Ks or Glocks.)
As noted, it's big. (Mine was simply too big for me.) The similar Witness models have a noticeably smaller grip.
Check out CAJUN GUN WORKS for mods that make a very good gun better, including a refined trigger that shortens the pull length a bit.