I got to try pretty much every trigger on the market at Rainier a couple weeks ago.
I was actually disappointed in Timney, I expected more. They were just okay, I wouldn't pay the price for one. There are a lot of good and okay triggers, but the Geissele still stands out. The number of completely different triggers based on one design with very subtle changes is just astonishing. They make something for everyone and they make no junk.
The best non-Geissele trigger I tried was the Hyperfire or whatever it's called. Has the dual springs, I don't think it's adj. but you could check. For some reason, I felt the lock time was a bit long but don't quote me on that, it may be fast. I thought it looked gimmicky but it worked very well and I was surprised. Wilson still makes a nice single stage trigger but not a fan of their 2 stage. KAC actually makes a trigger on par with Geissele and it's very well made, heavy duty, so if you ever get a complete KAC lower, you won't have to change anything.
I use mostly Geissele, in fact I do use all Geissele except the 2 stage Jard in an FAL (it's nice, especially for an FAL but I wouldn't use a Jard in an AR, however, they have come a long way in the last decade and some on here swear by 'em now). I have pretty much one of each of the Geissele triggers, more than one I most cases. For non-adj., for reliability and best trigger pull the SSA/E can't be beat. You can get 'em with different spring weights and tune it to the weight you want.
I only use the NM trigger in one rifle, a Satern bbl.'d 6.5G capable of .33MOA. I figured it earned.
The NM adj. Geissele trigger is basically peerless IMO. Skeletonized hammer reduces lock time and the set screws in it, once loctited, do well to stay put. I haven't had to touch mine since I did that ten years ago. It still has that perfect 2 stage pull with no pre or over travel of any kind. What more could you ask for? And mine came with 3 springs from fairly light to scary light. Set it up how you want it in that lower, Loctite the set screws, and you've got a solid 2 stage that doesn't need to be adjusted but once. Still, I wouldn't use 'em in "fighting rifles" or SBR's or such.
If you ever do need to change it, I believe you can soak the trigger unit in acetone(?) to dissolve the Loctite. Or maybe it was chlorinated brake cleaner. Probably easy enough to find. That way you won't damage the threads or have to heat it up in order to remove 'em and clean 'em.
