I just cracked my first of this. Did it mostly as prescribed, but replaced the Simcoe with Citra and used Amarillo pellets that were a higher AA (closer to 10%). I also dry hopped an ounce of that Amarillo for a week.
... and it's great! The extra hops really complement the orange zest. I overpoured the beer and got some yeast sediment in there, but I'm happy I did -- it's making this a great mix of flavors. If anyone's had Surly's Bitter Brewer, it reminds me of that mixed with a witbier (thanks to that yeast and the orange). I dig it.
Looking forward to seeing how this ages, too. I've only had it in bottle for 2 1/2 weeks, after roughly a month in primary. I suspect the orange will pull back a bit, but that's fine by me, as there's a lot of other great flavors coming through.
Thanks for the recipe! I'll definitely be fiddling with this one next spring and summer some more.
EDIT: Realized I used US-05 for yeast (had a packet in the fridge). Doubt it made a big difference, but FWIW.