I would say that if you are happy with what you paid for it, and you think it a fair price, then chances are, it is mate!
The question is, are you happy with how it performs?, are you comfortable using it?, is everything ok with the rifle?
As long as you spend the time getting used to your new rifle, and getting to know its quirks and behaviour, then i'm sure you will find it will be a good investment for you to have made for yourself, in the long run.
Hope this helps you bud?
All the best,
Grim.