I disagree with the statement that she's "unusually unathletic". For her size and strength, she's quite agile. She doesn't run the floor too quickly but from what I saw against Michigan she's actually pretty good when receiving the ball as a trailer in transition. She had one nice one were she caught the ball at full speed and made a drive to hoop for a layup and and-1.
The blocks I saw were made flat-footed when her opponent simply underestimated her size. I don't knock that - it's how Delle Donne gets all of her blocks and it's a good way to avoid fouls. When you're 6'5 - jumping is optional. She definitely doesn't cover that much range, though. Most of her rebounds come from just being taller that opponents - it helps that nobody is strong enough to yank it away from her.
Offensively, besides having a decent shooting stroke, she's pretty raw and needs to learn to keep the ball high so guards can't rip it away. Once she learns some moves, she could be devastating. Right now she can score quite a bit off of putbacks and just immediately turning and dumping it in from close range when she establishes position.