If it helps, I recently fostered my first Grey after spending almost 15 years with a Border Colliie cross. They Grey was bitten by a GSD... they have so little fur, that he needed stitches for a single bite - to protect them so that they are fragile in that sense.
Mine had the most gorgeous nature though that I hope to be fostering Greys for a long time.
Firstly, he had the softest fur I ever felt and he just loved getting massages after we completed our daily 1-2 hour walks, off-leash in a fenced park. He was soooo funny, playing with a ball, even with his muzzle on and playing soccer with me in the back yard. On walks, if he ever got tired, he would just lay down on the grass by himself... for 15-45 seconds before being ready to go again.
He would often go and meet another dog - he loved all dogs - then go up to the owners, rub his nose against their thigh and just start walking with them receiving pats and smooches... he made so many friends in just 6 weeks and so many people would have adopted him if they could because of his looks, demeanor and wonderful personality.
Even with all of the information available now, the only way of testing your likes and dislikes is to experience for yourself. But fostering is very different than ownership in that you can "try before you buy" which gives you a freedom you don't have when you make a commitment to provide a forever home. At the same time, I felt, (self imposed) extra responsibilities ie, as a steward of the dog.... I wanted him to be toilet trained (many Greys have never been a pet ... mine actually had beautiful manners from day 1 but I was prepared to train), trained on leash, trained off-leash and socialised to kids, people and other dogs before he left my care.
I am happy to report that it was a truly wonderful experience and my boy gave me a lot more than I gave him .... and I get to do it all over again, starting tomorrow :-).
I think that people often do not consider Greys as a choice they have but the more Greys that do get out and about into our community, so many people will fall in love with them and as a result, many more hounds will be saved from being needlessly put to sleep.
No breed is for everyone and Greyhounds may not be for you. If you feel you can be committed to caring for a hound for up to 2 months, then well done and thank you for your compassion and if not, thank you for at least considering fostering a Grey.