It's 30ghash for $600,
so, quite horrible
30gh - 38gh oc'd for 600 is not dirt cheap but it is okay for some under the correct conditions.
Any home in the USA that has electric heat would do well with this as a supplement to the heating bill. Now if you are in Miami FL it is not that good. But if you have a home in Virginia or Tennesse with electric heat this is a good piece of gear.