You'd regret ever getting one. I've looked at several, and if they were the absolute only thing I could get, them MAYBE I'd use one. I think that I'd mount a Coke bottle on the gun first.
Save a few more dollars and get a Bushnell, or a Simmons at the least. I've used several by each maker, and the lower cost ones are very serviceable, especially the Bushnells. Better yet, look for deals on GB Classifieds or Ebay and get a good scope for just a little more money.