Alrighty, I had my first taste of my saison made with WLP670. Turning out really well so far.
Unfortunately, I suffered a harddrive crash and all my beersmith files bit it. All my recipes and brewing notes are gone

! So here is a rough approximation of what I did, which was based off of
this recipe.
5g batch
Mashed at 150 for 90 min, batch sparged
10 lb Pils
1.5 lb wheat malt
Boil 90 min
1.5 oz Willamette pellet hops (90 min.)
0.25 oz EK Goldings pellet hops (15 min.)
0.25 oz Willamette pellet hops (15 min.)
0.5 oz EK Goldings pellet hops (0 min.)
Zest of 1 orange (0 min.)
3 oz fresh grated ginger (0 min.)
Small handful of whole black peppercorns (0 min.)
1/2 small handful of whole coriander (0 min.)
1 vial White Labs WLP670 American Farmhouse Ale
2 min pure oxygen
1.25 lbs table sugar boiled with 1/4 gallon water, cooled, and added to primary on 2 day of fermentation
OG 1.075 (approx, based on wort reading plus added sugar)
10 days in primary at 70-ish (room temp), grav at 1.009, transfer to 2nd
TODAY:
2.5 weeks in 2nd, grav still at 1.009 despite seeing the brett munching away in secondary. No pellicle forming.
Found an amazing deal on fresh raspberries and decided to try something different, so I racked 2.25 gal onto 2.25 lbs of fresh mashed raspberries. The other 2.5 gal of the beer is untouched. I'm going to let it sit on the berries for a week or two, then taste and blend as necessary.
But... I tasted the beer before racking and its pretty damn good. If I wasn't messing with the fruit, I'd go ahead and bottle. The aroma is herbal and spicy, with a nice subtle layer of musty barnyard over the top. The flavor starts just slighty sweet, with the orange/ginger/wheat/belgian yeast coming through, then immediately dries out on the swallow, bringing out the herbal/spicy hop quality and a solid yet not overpowering taste of horse blanket and phenols. NO sourness apparent yet (unlike the White Labs description).
So... so far, WLP670 appears to be an excellent blend.