Buy used from a well know airgunner and you might get a good one? Gamo can be , okay, they will NOT sell you any parts should you need then, do NOT get caught by their hype "1,200fps" ... .... .... Triggers are so so at best. They can be a good starter rifle but you will most likely want something just a bit better. A re-furb/sale/used RWS34 would be one to watch for.,
That said the OLD gamo's were good rifles - trigger not included- buy one if you can find it. If you must have a Gamo DO shoot it a bunch as soon as you get it so it can be returned if needed.
And, a Gamo just might (???) be all you need depending on your "paper" requirments, they will certainly whoop a tin can .
John