Ive been playing around with mine...nothing crazy to announce yet. Here are some tidbits for you guys

-Claymore's and a few other miners have incompatible kernels with the new GNC, so those don't even work yet
-Genoil's works, does about 35-40 with some basic overclocks
-Once i start tuning timings on this thing and over volt the memory should be able to hit 40+ on genoils generic kernel
-Im working with AMD for some driver optimizations for mining specific kernels (specifically on the linux side since currently its underperforming horrible on their new compute stack). AMD finally woke up and is addressing their mining customers (they could ignore us for so long when 90% of their profits are from us recently).
-Once these are done, and Claymore updates his miner for Vega NCU we should be seeing 50+

Verdict is still out on whether this can compete on price/hash and watts/hash on polaris, but if it can do 50+ it will still win out on density cost(i.e. achieve 160+% hash using the same hardware).