Uh, no, it doesn't sound excellent. You're making the same mistake that non-programmers make about programmers, assuming that what you don't do must be easy to do. Conducting usability tests is hard work, and it takes training to do well. Lots of code by newbie programmers is a swamp. Lots of usability observations by newbie HCI'ers is similarly a swamp, no matter how many times it's checked for alligators. You may find some obvious flaws, but you could equally find those within the first dozen tests you run.
Uh, no, it doesn't sound excellent. You're making the same mistake that non-programmers make about programmers, assuming that what you don't do must be easy to do. Conducting usability tests is hard work, and it takes training to do well. Lots of code by newbie programmers is a swamp. Lots of usability observations by newbie HCI'ers is similarly a swamp, no matter how many times it's checked for alligators. You may find some obvious flaws, but you could equally find those within the first dozen tests you run.