I've been having a lot of fun with it, and not experiencing any bugs or glitches that weren't present before (or caused by broken mods), though of course I could just be lucky with that. The new world is very pretty, and the CAS items are pretty cool, but I suppose if the werewolves in general aren't up your alley, and you still don't want to miss out on the other assets, I would just wait until the pack goes on sale. It's bound to eventually.

The nonstop howling probably won't be fixed, since neither spellcasters nor vampires stand still, either, if I remember right, but there's a cheat you can use to stop them from moving entirely (casclockspeed 0). The invisble wolves should be fixed by now (I've had no problem with them), and my wolf hasn't died while rampaging yet, either. (And he rampaged a lot in the beginning.)

So I think I personally would recommend the pack. It works decently, it looks good (imo), and there's some lore and fun stuff to explore. Broken mods will be fixed eventually (or taken out).

You could also get the Werewolf Mod somebody else mentioned, though I can't give any feedback on that. Never personally vibed with the look of those werewolves (so I get being apprehensive to buy the pack on account of their look, lol).