My season tickets are in the balcony, and the view is great, as long as you don't get too high up. You can see the plays unfold, and the the Jumbotron replays fill in the close-up stuff.
If price is an issue, the corner and end sections are cheaper than center court, and the view is fine. I would take a lower row in those sections over a higher row in the center sections. For the money, you get a better experience.
I'll say this for the Garden, though. Unlike the original Garden, there are no bad seats. Only good seats, better seats and great seats.