One of the greatest television programs ever created. If you finish it and want more Deep Space Nine is even better. Voyager is good as well but a little more rough around the edges despite being shinier.
I disagree that DS9 is better. TNG generally maintained an episodic approach while DS9 switched into long seasonal arcs. I think it's reasonable to say it's preferencial. That said, Voyager gets better after they bring on Seven of Nine.
And if you're going to have access to Star Trek, check out Lower Decks. It's huge fun. Understanding the wall-to-wall references is a bonus but not required.