I've had a lot of stability problems, but that should mostly be because I have over 100 mods installed for this game already. Despite this, my issues stem from the direction the mod has taken. The writing itself is very bad and the quest designs and setpieces are worse. For an army of secessionists, the NCR Exiles have access to resources and technologies that the NCR proper can barely afford. The choices of the characters in this game are questionable. For instance, at the beginning of the game, you are kidnapped and crucified and for the next 30-45 minutes you control someone else in a rescue operation that involves the majority of the fighting force. All that, just to rescue one person.
There are so many setpieces ripped straight out of military shooters. At one point I pondered what the point was in trying this mod out if it didn't feel like a Fallout experience. I felt like I was playing a janky version of Call of Duty.
Whoever wrote/designed this game has some weird issues. There is this race of lizard-people who get high on chems and are always horny. I am not kidding. You can even choose to have sex with the lizard queen. This whole thing is so out of left field and I'm not sure if it's supposed to be funny or the designer making his scalie fantasy come true.
Apparently, you can't play with the Enclave because the mod author hates anyone who plays as them or something, but is totally fine with you playing as a slaver cultist who worships a Roman LARPing group who make genocide, mysoginy and fascism as part of their doctrine. They also delete and block people who try to fairly rip into this mod, like your typical Twitter reactionist.
All in all, I'm loading an older save and I'll continue playing New Vegas Bounties, which I wholeheartedly recommend.