IIRC, it is closely-related to S-04. I brewed with 006 once several years ago and made a nice strong bitter (called "ESB" at the time), and I wasn't a particularly good brewer then (I fermented at ambient in my closet and didn't build starters). I didn't use any dry yeast back then, as I was warned that it was all junk and hadn't wanted to risk it. That said, I am a genuine fan of S-04 as well, though I wouldn't pay extra for a liquid version. In any case, 006 is a reasonably prototypical English ale yeast, so you can probably expect it to produce beers basically similar to other English ale yeasts.