I've been to a few happy hours here, and it's a really solid place to get a drink with friends. I can't recall all their happy hour deals - we've usually gone on Friday and I think their special on that day is pretty minor (like 50 cents off beer or something), but they have better deals on other weekdays.
We can always get a table at happy hour time. The atmosphere is casual and comfortable. Affordable food, which I haven't found to be terribly special, but it's fine as bar food goes. We've had various appetizers (onion rings, chicken fingers, nachos) - the nachos are HUGE, as I recall - even our group of four had trouble finishing them. I'm happy to live just down the street from Silky's, and I'd always be up for a return visit for a drink with friends, or to watch a game.