While some of the examples in the text need to be fleshed out a bit, and the problems at the end the of the chapters are somewhat too oriented toward programming problems, on the whole I am finding this to be an extraordinary text. I am teaching it to freshman physics majors, and even those who've had significant high school physics (includng AP) have never really seen a physics course like this, and it seems to be keeping them excited. Unlike the standard freshman college texts, which simply reiterate the high school curriculum at a slightly higher level (and makes them do blocks on planes and pulleys ad nauseum), Matter and Interaction introduces classical mechanics alongside modern, alongside relativity. I have also found it a useful jumping-off point to discuss oscillators and circuits. Though the authors will need to do a bit of fine-tuning in future editions, I highly recommend this as an excellent freshman physics curriculum.