Everyone can make claims about anything, but at some point in time, the product has to prove itself. So to me, when the person selling the product makes claims, I discount and ignore them. Sorry, that's just me; I've been around the block a few times.
However, when users of the product extoll its virtues, I take notice. I also take notice of people who dump on the product, realizing there is always the seemingly inevitable defective example that gets out. If I hear several similar complaints about a product from different people, that starts to have an impact.
In the case of the Geissele trigger, I bought mine several years ago, its serial number is 3 digits and is hand-engraved. I have never had a problem with it and as I said earlier, it has ignited several thousand primers, never failed once.
I roam gun boards and while I only participate in a very few, I do read many. I have never encountered a negative comment about Geissele triggers, only positive ones, usually with the words "best" and "trigger" in the same sentence describing the trigger.
If there is a negative aspect to the trigger, it's the cost. At $279 it is very pricey. But in this case, you get what you pay for. I meticulously adjusted the trigger to have just 2 pounds on the first stage and just a few ounces on the second stage. For match shooting, this is perfect for me and the scores have shown it.
I have never tried, or even seen the SSA model, I am confident it is a fine trigger, every bit as good and dependable as the match trigger.
Perhaps you may not be aware of one of its benefits and that is the concept of "high-speed". In case you were wondering what that was about, permit me to explain.
The AR-15 is actually a marvel of engineering and ingenuity and many aspects of it are just the end result of "thinking outside the box." One must remember that the AR-15 is a martial weapon, it is a combat weapon and was developed as such. Everything about it is quite simple and easy to maintain. The trigger group is an example of this. The Mil-spec trigger group allows for full-automatic function but the trigger group was easily adaptable to semi-auto fire.
As you know, the elapsed time between pulling the trigger and firing the cartridge is not zero. It is small but it is not zero. In the AR-15, the lock time (the time between pulling the trigger and the firing pin impacting the primer) is about 12 to 15 milliseconds. By comparison, a bolt action rifle will have a lock time of about 4-6 milliseconds or about 1/3 to 1/4 the lock time of the AR-15.
In a martial weapon, designed for full-auto or select fire, this is irrelevant. In a hunting rifle, this is also irrelevant. But in a match rifle, it may become relevant. The main aspect of shooting accurately is simply this: align the sights on the target and pull the trigger without disturbing the sights. When the AR-15 started winning and winning big at Camp Perry and Service Rifle competitions around the country, people had no choice but to face the fact the AR-15 was one heck of an accurate weapon and they rushed to it, big time. It was not long before shooters ran into the issue of long lock time. One might think that 12 or 14 millisecond is not a long time, but when your sight picture is moving, as it will in Service Rifle competition or extreme long range shooting, lock time has an effect. And the longer the range, the more pronounced the effect.
So Mr. Geissele designed his trigger in a way that the lock time would be cut down and his trigger has a lock time of about 8 millisecond. Still longer than a good bolt action, but a definite improvement over the stock AR trigger or any of its replacement. What this means to me is that in a match, when I place the crosshairs and target dot of my scope exactly where I want them to be on the target, I then pull through the first stage and when I want to shoot, I only have to think about it, and the few ounces of the second stage are overcome and the rifle fires, on my command, before the sights have a chance to move much at all. Doing my follow through helps further mitigate unwanted movement. When you pull the trigger, the rifle is going to move, you just don't want to give it too much time to move off the target.
This high-speed concept is only useful for precision shooters, especially those of us who do not subscribe to the fallacy that tripping the trigger should come as a surprise. I KNOW when I want my rifle to fire and I KNOW when it's going to fire, there is no surprise here.
Sorry for being so long-winded. Enjoy your trigger, it's a great one.