As already mentioned just don't rush into anything and make sure you are 100% with the purchase.

If your gut feeling says otherwise then trust your instincts.

I spent over 6 months finding my GQ and was very close to buying about 2 other GQ's (which were no where near as good as the one I found) prior to finding the perfect one!!!

Patience is the key mate and just keep asking any questions if you need help or unsure if It's the right one.