I don't think you will see the S04 as much as the others because it has uniquely English characteristics. I've used it a few times, and have some in the fridge.
As Torben said, Great stuff. Should be ideally suited to your brew.
Maybe I've misused it but I used it for a couple of my batches so far, both light American ale and an IPA. From what I read, it would be similar to S56, but not quite as neutral. Technically it is an English so ESBs and such would do well.
I use it for english IPA's, Browns, Bitters, etc. and love it. It ferments fast then floc's out fast and clear. Medium attenuation, which leaves some residual sweetness.
just sampled a bottle from my last batch using this yeast, this is one of my best beers, not sure if its cause of the yeast, more grain (partial mash) than usual, or just a good balance. realy easy recipe...
Just racked to secondary. Active ferment for about 48 hours, then quick drop off. Nice color and taste. A bit raw but I can see and taste that this is going to be a good beer. Half will go into a Pig, the other half in bottles.
This was my first beer to score over 40 in a comp. It was my best score untill my Sloppyknickers English Barleywine scored 45.
It may have done as well with a different yeast but if it ain't broke don't fix it.