I have had three whippets - currently have a 4 month old pup who, tbh is the easiest dog I have ever had. (Maybe this is the calm before the storm!)
All pups get zoomies so that is to be expected. However, taking my small sample as an e.g., there has never been any crazy barking during zoomies so it makes it all less frantic. In fact, I have only had quiet dogs. (They can whine a bit though if they want something.)
The play style is interesting to think about. I have never had bottom nippers (ouch) but I find they LOVE being chased (because they can always outrun). SO that is something to bear in mind if they are playing off lead with another dog - they can zoom so fast they might inadvertently run into the road for eg. That's why beach exercise is quite nice.
And on that note - rather than scream their name if you want them to return, I've always whistle trained and it's worked well. The whistle noise cuts through the zoom.
They are quite food motivated, but that just makes training much easier. So the come to whistle treat is something super-tasty like chicken.
That's not to say that if there was a small furry thing running very quickly across the path they wouldn't chase it. They would. So it helps to anticipate and stay on the lead on walks unless you are confident you are in a secure area.
My pup is a sweetheart. She is so gentle and has a very calm energy about her. She is very biddable and LOVES a routine. .
What I like most about whippets is that if you give them a walk it is a job well done and they will sleep afterwards. They are really good at snoozing. My pup can sleep from 9 or 10 at night till 9 the next morning and not wake up for a wee. She is reliably toilet trained - all the whippets I've had have been easy to train.
The worst point I think is that they are velcro dogs so they are tricky to be left. However, I have successfully crate trained 2 dogs. This little one I'm afraid I have been rather too soft on and she sleeps in my bed (which is why she sleeps through, probably). And at first I only let her into the kitchen. But I think of it as 'hysterical bonding'. Now she is so secure (and wees outside) I have started to leave doors open and she can choose to follow me around the house or not. Often she chooses not, so I am confident she will be OK to leave (when we can go places!)
She is very self-sufficient in the garden and loves being out there exploring. She is unusual in that bad weather doesn't phase her. She is the hardiest whippet I have had. They can be a bit 'shivery'.
I'm a big fan, but I think people do have 'their' dogs so you will get a lot of different opinions.