
Having owned 3 working ESS so far, currently 2. I disagree that working ESS need only as much physical exercise as "average" (suppose it depends what you think of as average). I can quite honestly say, mine would be up the walls, using my house like a race track, getting up to all sorts I don't want them to learn, let alone do, and gererally being pests if they weren't both mentally and physically exercised. At the moment I have one too young to do lots and one with and injury and life is less than peaceful at the moment. I can't wait til the pup is all grown up and my other one is all fixed again and we can get on with hiking, swimming, chasing balls and as much training as we can fit in at the same time (the best reward of all for mine when getting a mental task right is to be physically exercised and only when the 2 meet are they truely happy).
As for the grooming, that needs careful attention too if you don't clip off their lovely coat (which would be a terrible shame in my eyes). Their ears and feathers need a daily brush so not to get tangled. During the summer they need to be carefully checked over for grass seeds (and the rest of the time brambles etc) because the coat is excellent at holding them and their feet are best trimmed to reduce the chance of seeds getting stuck in the summer and mud etc the rest of the time. Their "bum curtains" sometimes need trimming to keep them clean, it's advisable to trim the hair away from the inside of the ear to allow air to circulate reducing the likelyhood of infections. While your springer might have an easily maintained coat, they are very variable because they are bred to work, not for looks so looks are a much lower priority than for a show breeder. All 3 of my springs have looks completely different in build, size and coat.
I think that working ESS are wonderful dogs and in the right homes with the right lifestyle are fab, but in the wrong homes, wrong lifestyles and with people who don't want a dog that is so clever it can out smart you and you have to go away and think up a never more cunning approach they can be a disaster. Far too many end up in rescue because of people thinking they look nice or are easy. They are far from it but if you have what it takes, they are well worth it I agree, my life would be empty without them.