I have met too many wonderful standard poodles to say anything negative about them. I think they are truly a wonderful breed.
Generally, healthy dogs. If you are going with a breeder, ensure OFA or PennHip has good results. If going with a rescue, keep the dog fit and lean. Many have great hips, but some do have hip dysplasia. They are one of the breeds prone to Addisons and Bloat. Just be aware of what these are incase your dog should show symptoms you will know what to do.
Regarding grooming - generally once every 6-8 weeks, its not crazy expensive if you don’t want a show trim. I will sometimes do my mini poodle myself, but have realized for $40…she;s going to visit the groomer instead