I remember my Mom used a pressure cooker for roasts when I was a kid, and later my wife did too for many years. I used to love not only the smell, but the sound of that little thing on top dancing around as steam came out. Good times.
That's how my mom made it as well and your right, the smell is fantastic.
I prefer to sear the meat on the grill first and then oven roast it on high. The searing locks in the juices and the high heat cooks it but leaves the middle rare and tasty.



