Too tight. Had to size up for my daughter who is normally a 6.5 and she still thinks it's too tight. Will see if it breaks in, but it not we're going to return it.

Great stability and control. Of all of the current Nike tennis shoes for women, these are the ones that find the balance of stability without being too heavy or clunky. The GP Challenge Pro is the best shoes for anyone playing hardcourt 3+/week. For me, the Zooms are too flexible - there aren't any brakes when you sprint and change direction on hardcourt in the Zooms. Plus the sole of the Zoom wears out too quickly, I replaced them every two months because the tread was gone. The Zooms triggered plantar fasciitis when I wore them because my feet were working too hard in the loose, flexible shoe. A competitor of mine broke her foot the first time she wore the Zooms. First short ball she sprinted from the baseline and broke her foot. No stability.
The Osaka's are CUTE but are far too heavy and not breathable enough for a long singles match.
Enter the GP Challenge Pro. The upper has reinforcement at the midsole to keep you locked in. It prevents you from sliding through the toe when you are sweaty and chasing short balls. The tread is hearty and holds up with frequent hardcourt use - I am replacing mine every 6 months which is typical if not a little longer than usual. And the sole has an athletic contour with little give that makes the shoe very responsive.
They are such a good shoe that you never have to think about them.
My only gripe about them is the CHEAP insole. It is so laughably bad it ruins the shoe. I end up using the Sof Sole athletic gel insole. It is easier on the joints and prevents blisters and bunching than the sole provided. With the replacement insole it is a 5 star shoe.

This shoe was so so so comfy as far as bounce but it was SO tight. I am a womens 9 and my wife is a womens 8 1/2 and we both could barely get our foot into it. There is a tight almost sock-like piece that hugs your foot so tightly. I have a pretty average foot width wise. Like I said sooooo bouncy and nice but holy moly super tight.

So comfy! I ordered a half size up and fit great. They are meant to snug your foot. I bought them for pickleball. I am very happy with my purchase!

This is my second pair of Nike court shoes and this style by far has way more support and super comfortable. I will definitely buy again.