I had a chance to setup the Yukon Outfitters fly today. Only a quick backyard evaluation, but from the backyard, I currently give it 3.5 out of 5. It's a compact package when packed and well made. The stakes though are crap that are going in the garbage. No big deal, as I have plenty of other stakes handy. Guy lines are okay. They'll probably need to be replaced after some use, but again, no big deal - if one breaks in the field, I always have paracord with me. These two items lose it the 0.5 stars.
The 1 star loss comes from the size. I would really like to see an extra foot of material on all sides. The current size is just fine as a sunshade and heat reflector, and will likely work fine in light showers, drizzle, etc. However in a good windy rain, it looks like it's way too easy for water to get through if you have the fly setup with any overhead space above the hammock. If you bring the apex down low and bring the sides in, I think you can be well protected, but you really need to line things up just right. If it were just a little bigger, you could set it up a little higher and have more leeway in setup (especially for areas sparse in tie-downs), which would also allow for more moving around room outside of the hammock for making coffee and whatnot if you're rained in during the day.
Anyway, my two cents after a quick setup. We're supposed to get a good rain here next tue-wed, so maybe I'll set it up beforehand and see what it does in a downpour. I could be completely wrong in my fears.