I've been shooting IPSC with an STI Edge for about 3 years. I don't shoot tournaments, but I shoot with the local clubs several times a year.
The Edge has a great trigger, is very reliable, and plenty accurate with WinWB 180 gr. loads.
I've had 0 (zero, zip, nada) problems with FTEs or FTF over a couple of thousand rounds and have had absolutely no work done to its out of the box state to increase its reliability, accuracy, or to improve its trigger.
It's big and heavy and soaks up the recoil from the 40 auto round, which makes it very controllable for the follow up shots required for most IPSC targets.
The 17 round mag capacity also allows a lot of flexibility when trying to determine how to approach a course of fire.
I got mine from
www.shootersconnection.com
If I didn't shoot IPSC, the Edge would be too big for other uses such as concealed carry. It's bigger even than the full size 1911 style 45s.
The Browing HP would be a better large frame semi auto for carry, and there are many other reliable 40 autos in smaller sizes.