Excellent choice. You'll be happy. I'm still waiting for my Impact in .22, but with a 700mm barrel. The reviews of the Compact say it's incredibly accurate for such a short gun.
Who did you get it from and was it in stock?
Oh, and you might want to get some pellets on order. PA took about 2 weeks to get my last order to me. Not bad, but they were out of stock when I ordered. I think most folks are shooting the 18.3's but you might try the 15.89 JSB's when you get the gun. Never know which will shoot most accurate.