Same here ... I am unfamiliar with the Girsan, but the ($379) Rock Island-made Taylor's & Co. 10mm is the cat's meow.
If I were to guess, the reason for the low price was because it shipped with two
USELESS KCI 45 ACP mags
... after ordering Mec-Gar 10mm & 40 S&W magazines, I took a hammer to & then tossed those KCIs.
In addition to the M-G mags, I picked up an RIA 40 S&W barrel & guide rod kit; removed the magwell; added an arched MSH & finally, replaced the red front sight rod with a green one.
The $379 may be the best money I have ever spent on a
pistol, as the Taylor's 10/40 1911 is extremely accurate & with those Mec-Gars, it runs like a scalded dog.