Production items get machined or cast out of spec at times, and this is the issue with some of the Rem triggers. I have been shooting them for 45 years, no problems yet.
I do like the idea of the three position safety, but many brands of after market triggers exist also.
The Remington 700's are very, very rigid actions, and I hang 28-31" unturned blanks off of them that are not supported in any way, not bedded underneath the barrel, completely freefloated from the recoil lug forward. Remington's are also some of the safest actions ever made when it comes to handling dangerous over loads where a guy has used the wrong powder or made the wrong adjustment on his powder scale.
In the following pictures, a friend of mine was dying from COPD. He was in the final days of his life and wanted to teach his grand son to reload. My friend with all the medications he was taking made the wrong adjustment on his Older Ohaus scale and put a 10g over max charge of 3031 with a 55g bullet in a 22/250 Remington 700. The 11 year old shot the round without safety glasses, and scared him to death. Of course the bolt was locked up solid after firing. As I unscrewed the barrel, I could hear cracking of metal giving way, and the brass had completely filled up the inside of the Remington bolt head, cracked the outside of the Remington bolt head, and expanded the bolt head to the side of the action. Remington's three rings of steel had prevented a catastrophic failure.
You can see part of the extractor welded to the edge of this piece of brass
Here you can see where the brass flowed to fill in the recess in the bolt head, and the curl to the left is the actual piece of bolt head that broke off when I unscrewed the barrel. The extractor is welded in the brass. If this same thing had happened in a rifle with no bolt recess, metal would have been escaping out the gas ports.
Another picture of how the case head blew out and was very fluid when it molded it's self around the inside of the bolt head.
Close up of the bolt head after I unscrewed the barrel, breaking off part of the bolt head as it was welded to inside of the action.

Another pic of the bolt head, one side of the bolt head did not break off

Another pic of the case with the brass that flowed around the bolt recess.
Remington bolt heads are put on the bolt body in a separate operation. The Remington bolt head is a very special piece of equipment made to take ungodly pressures of 150,000 PSI. Winchester bolt heads are made in the same way. Other than these two companies, no other bolts are as strong, that I know of. I have a NASSA engineer friend that is writing a book on current actions and their strengths, and he said that the results are going to shock a lot of people and probably put some action makers out of business.
So, you can see from the pictures that Remingtons's Three Rings of Steel really work in catastrophic failures. I would hate to guess what would have happened with any action that was cast, or where the action was not designed to have a recessed bolt face or recessed bolt nose machined in the barrel. These two issues are MAJOR considerations in Safety.
Now, consider the condition of the action. I checked the lugs on the bolt and lugs in the action, there were no indentions what so ever where the metal may have been crushed. So, I bought a new bolt and put a 6 Dasher on the action, and it is shooting bug holes to this very day.
Another thing to consider, if this bolt had been modified to have a Sako or M 16 type of extractor installed, that part would have been a bullet flying to who knows where.
So, if you don't like a Remington Trigger, get a Rifle basic, timney, jewel, Bix and Andy, or others because the rest of the package is well worth having...especially when it comes to resale.
The book that is coming out will also have some computations in it as to how rigid various actions are, Remington's are way up the ladder. Obviously, I am shooting bug holes with 28-31" unturned blanks(1.25" straight, no contour) hanging on them.
I am not trying to put down any other action maker, just trying to give credit where credit is due.
Remington's design in this aspect is a great one. I do like the aspect of replacing the safety with a three way safety like Winchester and upgrading the triggers to aftermarket triggers. I just usually hone my Walker triggers, re spring, and rock on.