I am thinking of self studying the first six chapters of Folland's Real Analysis: Modern techniques and Their Applications. I had read the first six chapters of Baby Rudin in the first real analysis course I had taken and would love to hear what people think of Folland's book for a second real analysis course. Has anyone read this book as an undergraduate? Is it too challenging for an undergraduate student?
Bonus: Does anyone have any other suggestions for a different textbook that can be used in a second semester of real analysis? I've read about Spivak's book but I don't think a physics-based analysis course is relevant to me (I want to pursue graduate-level statistics in a couple years).
Edit: I would love to learn some measure theory.