Excellent company to do deal with.
I've bought a few items off them, one being a 300f4L, which on receipt, had a focusing issue. I contacted them, they sent a courier to pick up the lens and the money was back in my account, including the postage, 2 days later. Despite the problem, I consider that excellent service.
My most recent purchase was a Sigma 10-20 f3.5, which was described "as new" and believe me, it's mint.
I would have no reservations about using them again, their aftersales is superb.