I feel that there are far better steakhouses than the Keg if you are willing to search.
I ordered the 10 oz filet mignon and while I found the meat doneness to be pretty on par, nothing else really stood apart from any steak that I've had elsewhere before. I did appreciate the complimentary fresh baked bread and dessert, though.
The atmosphere here is quite intimate, but I found the lighting to be far too dim. However the servers were really friendly, but not overly so: it's nice to have a balance between chattiness and knowing when to let you be.
The verdict: great service, but personally, I think there are better steakhouses to be found elsewhere.