I'm also extremely disappointed that it's been cancelled, as it's mostly been getting better with every episode since about ep 4 or 5.

I really started to warm to Leeds in this ep, I love the way they've characterised him, and it's impossible to pin down the character as to exactly whose 'side' he's on. I don't think I wanted to like Leeds at the start of the series, so the fact that they've made me like him (and worry about what's going to happen to him now) in the second half of the series is a testament to good character development, and good acting from the bloke who plays him.