I love my Sigma 9mm. After getting fairly comfortable with the trigger as it came from the factory, I did the first half of the trigger mod that Saiga223 posted - I just removed that little pigtail spring - and that made a nice improvement in the pull. It's still long, but a bit lighter. I have my eye on some other guns, but I can't see me ever parting with my Sigma.
Like others have said, shoot the thing & get used to it. You'll be glad you did.
Like others have said, shoot the thing & get used to it. You'll be glad you did.