Is Airrattle.com reliable and is a Galaxy G5K airsoft gun a good choice?

Yo, I done bought a Galaxy G5K From airrattle.com, Now first of all is this a good CQC/CQB/Backup/Room Broom Gun, and secondly is airrattle.com a reliable website. Now I done heard positive and negative things about this website and when i ordered the gun they send me 2 emails, one said it was confirmed as an order and the other one i got this morning stating it had shipped. Now heres the problem, when i track the number on Fedex.com it says no such number exists. So did i get ripped off? Please let me know because i spent all of my 100 dollas on it which was all my money i had.