If you're lucky enough to find a sirloin roast or sirloin tip roast, then you've elevated a beef roast far beyond a simple pot roast - yummy as that might be. I've done a couple of articles on roasting beef - different cuts and techniques.
Tastes similar to pot roast. The gravy is freaking delicious! I think my love for my slow cooker is pretty well known (well, at least to my family). It really is one of my most favorite kitchen applian.