For me it'd come down to two things:
1. Is there an opportunity to learn more in the new gig? If I can learn more AND get paid more while having similar if not better upwards mobility, I'd sacrifice the life balance part a bit for that. (especially when it doesn't sound like it's going to be THAT much worse on that front)
2. Am I very comfortable with what I am making now, and how much more comfortable would I be with that bump? For example, if I were making 500K/year and the bump would be to 600K a year, that's nice but I'd feel 500K is already pretty comfortable so the pay bump wouldn't be a critical factor. However, if I'm only making 300K and the bump is to 375K, that's much more meaningful to me as I know that 300K isn't very comfortable and 375K gets me closer to what I want.