I've owned a M70 Stealth for about a month now. I'm still getting to know the rifle, but the only complaint I've got is the trigger. Well, not the trigger so much as the pull weight. Actually, the trigger itself has a very nice feel to it with minimal take-up and a very clean break.
I removed the action and dug out the sealer and backed up the adjusting screw after the first range day and that helped. It's still at about 3# which is too heavy for me. I'm probably going to get the lighter springs from Ernie the Gunsmith, and get them installed by a local smith. I'd really like to bring it down to about 4 ounces (I don't hunt game). So, the trigger is not really a complaint, just some of the normal tweaking I'd do anyway.
I've got a 6x10x56 scope with mil-dot reticle on it and the rifle, shooting Federal GMM 168 gr SMKs, manages sub-MOA even the first day with the heavy trigger.
Cold-bore shots group a little better than when it warms up, but its still breaking itself in.
In sum, I've been very happy with the rifle. It is my first Model 70. I'd given up on ever owning a new one after the manufacturing disaster in Conn. I am delighted that FN took over and QC'd this rifle back to where it needs to be. I think it is fair to once again call it, "The Rifleman's Rifle."