Well your $15 made you $70, and the all in got you another 135 for 205 total over 10-1 not bad. The allin bet is a big overbet, but I think it depends, if you think a raising war will start fire the first bullet and keep firing. But calling and checking the turn is cool, just realize if he doesn't bet the turn and sees the river and doesn't catch a card, he may just fold.