Cooking a pot roast- cook to a temperature or just let it sit for hours?

Using this recipe

Should I just let the roast cook for ~3 hours or do I want to watch for it to hit a certain temperature? Any other advice to make a stellar pot roast? Thanks!

Submitted December 26, 2016 at 12:14PM by DomonuT http://ift.tt/2hHHDNS