You might want to look at Muck Boots. I've used them for a decade or so. Athough they look like wellies they don't wear like wellies. I've walked thousands of miles in them with the dogs in all weathers and ground conditions, and worn out three or four pairs.
They're relatively warm in the winter compared with wellies, and much more comfortable. Totally waterproof. Quick to slip on and off, I use them all the time when I'm going in and out to the garden.
They have their bad points though. They're pricey. I've tried several different ones and I've never found the ideal combination of grip and comfort. I've fallen over in them quite a lot when I wouldn't have fallen over in boots.
Because of the grip problems, for walking the dogs I've changed to a pair of American-made waterproof boots (Skechers) and I really rate them. They cost quite a bit less than the Muck Boots and wear better, but they're lace-up so not quick to get on and off.