If I said I'd seen a huge amount of him, it would be a lie, but I have seen him in all the ODIs, a couple of times on TV and once in a county game at Hampshire. To me, he looks to be poor, or at least below average on the short ball. As a test class fast bowler bowling to him, I would have a man on the hook, and would fancy my chances of getting him caught at any stage during his innings. He also, IMO, has a condition of 'Bellitus' where he can get himself out in some pretty soft ways having got a start.
On Ramps, you're right about his highs and lows, but I just think the chances of a high are so small, it wouldn't be worth the gamble.