Ok, I will state first what I liked about the movie. First, had some great old footage (especially the front of the "The Olympia" there in Detroit! What memories!), and reminiscing about everything in the late 60's & early 70's (ads, product placement, cars, parts of Toronto) that puts someone who grew up in that era and in that region of the US/Canada into memory lane. Secondly, some of the hockey stars in it (George Armstrong for one . .Way to go Chief!) make it really fun to watch.
Ok, now for the bad . .the movie's plot is a bit weak, and the girlfriend character of the "hockey hero" is a bit on the annoying side. Acting is a bit on the "mechanical" side, but I have seen FAR worse movies than this. Nevertheless, this movie holds a sentimental side to it for me, as I was 8 yrs old when my Dad took me to go see it. But when I watched it again 40 yrs later, didnt have the same appeal to me, so for someone in the modern-day trying to absorb it, they'll probably be bored to death by it.
If you can get it at a decent price, and if the movie holds some sort of sentiment behind it, then I'd say it is a good purchase. However, anything outside those two caveats and you maybe disappointed.