What to expect when coming from shamu?

I have a n6 right now. Stumbled upon someone looking to trade their opo 64gb for an lg g3 I had on my company account with Verizon(I switched to at&t). I see development is similar to the nexus. Should one stick to twrp or is cwm just as good? Any roms to avoid? Xposed play well with any?

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