I have a love-hate relationship with the Frigid Outskirts, haha.
On the one hand, they suck to solo, the blizzard is annoying, the horses are assholes, yadda yadda. The boss is ridiculously hard and the trip back to them is a huge pain in the ass.
But, they are kinda fun to coop. The key here is to have a weapon that can stagger the horses, otherwise you're in for a world of pain. Coop helps with that since you can break their poise by ganging up on them.
And on my Company of Champions run, I was dreading this area (and the boss) so badly, that I saved it for last. I had beaten it with every character, including some in NG+, but in NG my CoC guy, which was a faith build (made it back before all the nerfs), I was just too daunted. On every single build/run, even in coop, I would die at least once (either to the horses or to the boss).
But then when I summoned the courage to play on my CoC, I respec'ed slightly to use a lightning-infused red iron twinblade. This shit staggered the horses like crazy and they never caused problems. I then used a brightbug + sunlight blade and slaughtered the first tiger before the second one came in. Killed the second tiger shortly after. So I did the whole Frigid Outskirts in one try with my most vulnerable character without dying, and it felt so satisfying that I can't really hate the Outskirts that much anymore. XD