I work as an engineer and come from a machining and rifle building background so little quirks don't get me riled. I can see how some folks could get turned off, especially hopping on the initial product releases that have issues. That said, the long action Nucleus that I have came with the 16lb spring and had about 5-10% light strikes. A 19lb spring replacement fixed everything and the bolt lift is still very acceptable. I also tried a 25lb spring and that was no good (ignition, yes, bolt lift no).
The Barloc is a separate item. Ted has said from the beginning he wasn't a fan of the idea, and it was a bandaid solution to keep people from drilling the receiver face to run the WTO Switchlug (also less than ideal for several reasons). Anyway, a lot of pre-fit shouldered barrels are out there with the tennon cut a little longer than a guy wants (or shallower head space-- almost the same thing, to an extent), and little smaller pitch diameter, too. Neither helps. You want the barrel shoulder to at least contact the barloc (better if you have to torque it on just a smidge) to get to the correct head space. If you head space the barrel and there is still air gap between the loose barloc and the barrel before tightening the clamp screw, you will get POI shift. Likewise with the Savage nut setup, torque the nut until the wrench fits in the barloc before tightening the clamp screw. I never had any problems that way, except with a PVA prefit. I reamed that PVA barrel .007" deeper and all was right in the world; no more POI shifts with impacts. I spin up my own barrels for the most part, though, so I have the benefit of tuning stuff how I want it. Anymore I have accumulated enough stocks, scopes, actions, etc... to just have single-caliber rifles and the quick-change idea isn't so necessary nor intriguing. I just spin up shouldered barrels (no barloc).
But back to the original point, yes. I think the Nucleus combines a lot of good features in an action that runs really well and really fast. Not in a bad price bracket, either, for the features. I'm getting it expecting to have to modify it a little bit because I'm going to run 6mm ARC (.445" case head dia.). I had to machine and fit the bolt head/extractor on the Mausingfield as well. The MF started as a .223 bolt head, luckily I may get away with just running the Valkyrie Nuke head. We'll see... If I gotta swap a spring and a cocking piece along the way, oh well.
Doesn’t bother me. At least I’m not poor, though.