I shot a Geissele the other day and wasn't too impressed. I'll keep my stock mil-spec trigger that works all the time every time whether it's dirty or not, or no matter how abused the gun gets. Prior to the one I shot the other day, the only other one I've been around calved on day 3 of a 4 day course - no thank you.
Failures in a GA? An unusual criticism. To see it brought up as a factor comes a bit out of left field.
The SSA, SSF and of note, the SSF-416 are all tested and certified by US Naval SWC Crane, and are in WIDE distribution in all US Special Forces units. The USAMU, last I heard, hadn't established a failure point for the Hi-Speeds. They just keep on shooting. The USAMUs competition shooting team shoot GA through and through speaks volumes. The AMU also supplies combat shooters with GA match triggers. They all talk about their excellent reliability.
I guess beyond even the glowing reviews of our own customers, civilian, police, and military, which we love hearing, I will take the testing, purchases and growing use in SF (and more recently, police) in the US and around the world over an individual story about a guys calving on a course, when it comes to a conversation about reliability of GA Triggers. I've never heard of a GA trigger failure in Canada, and with the price of them, if one did fail, I'd guess I'd expect to hear about it. We warrantee them, we have never received a claim.
I do know that you can adjust a Hi Speed out of spec to the point that it will lock up (did it myself once, on purpose, to see).
The biggest thing I didn't like was the reset, or rather the lack of same. No need for a match trigger on a door kicker gun. Maybe on a DMR, but no reason or advantage whatsoever that I can think of to have one on a carbine / patrol rifle.
Not all GA triggers are match triggers, and the US Navy/ US Spec Ops door kickers are voting for GA combat triggers with their wallets.
Check the customer list here.
Personally, I am not using my rifle in combat, or kicking any doors beyond an IPSC match these days, but I like the reset, a lot, and with training and practice, am shooting faster, more accurately, and more comfortably than I do with a standard mil-spec trigger.
More specifically to the question, there is always a place for greater trigger control in a service weapon. You CAN control the final shot release of a rifle, carbine or otherwise, with greater control, than with a mispec single stage trigger, regardless of the situation.
Get a S3G.
If for nothing else, longer life and faster reset. Every trigger pull for the rest of your life will make you happier. How's that for a reason?
