I'm relatively new to this hobby but I think you should go for it. You could also dose Flourish Excel (liquid carbon).
With CO2 you'll have faster growth and you could add more difficult plant into your tank.
You'll be less prone to algea issues also.
If you add CO2, buy a KH tester and measure/control it. It will be more important than you're pH. CO2 in water form acid. The KH will act like a buffer to avoid the pH to swing up and down.
Be careful if you want to go high tech, you'll always want more haha! I first started to add CO2 and now I completely change my aquarium (light upgrade, substrate upgrade, plenty of ferts).