Mine is just over 5 months old and he’s my first whippet.
He was easy to toilet train and will sit, lie down and give paws for treats. He is very driven by good treats.
He was walking off the lead at 3 months (although never near roads!) and his recall is great unless there are other dogs around in which case he refuses to leave the playtime fun about half the time.
He doesn’t bark and is really laid back about most things in the house like the hoover, doorbell. No shedding either and easy to clean after walks as it’s mostly washing paws and legs in the bath but the rest is clean and off the ground.
Mine is a very fussy eater and although he loves treats, dinner time needs to become a game to make him eat.
He is daft and hilarious and super cuddly. There’s always a head or a paw in my lap and he sleeps in bed with us (don’t judge).
He is an absolute food thief and has learned how to open the bin. He was a piranha when we got him and the biting and chewing was super frustrating but that quickly settled down with training. Expects cuts, bruises and ruined belongings unless you hide them.
Buy loads of blankets and get really interesting treats for recall training like chicken, fish etc.
Also with winter coming buy lots of jumpers as they’ll get cold. They grow so fast so 2nd hand might be best to start with.