Well, I think it is something U have to get used to - When I bought my USPc 2 months back, I was tempted to get a P2000 - but I already have a compact Walther P99 - a similarly sized gun.
In my experience, it wasn't that heavy of a trigger - it just reaches its heaviest point right before the trigger breaks.
Supposedly, the Sig DAK trigger is very similar. It's really more of a trigger that adept for a carry weapon - so U don't get startled and fire the gun accidentally. I don't think it would make that great of a range gun, but I have read others who love it - Supposedly, it takes a while to get used to it.
On this site, some people have talked about the S&W sigmas - from what I have read, some people didn't like the gun too much until after about a year - they finally got so used to it that they started to shoot great w/ the gun.
Ultimately, it will be up to U as to whether or not U want to keep it. They do make a DA/SA version of the gun too. For a DAO gun, I thought the LEM trigger was pretty sweet. But, any type of DAO gun will never be as good at the range as a gun that has a SA trigger.