We did a partial commercial kitchen in the big remodel years ago. It's an old Victorian house, so the general theme was "1920's kitchen" with subway tiled walls, but enough modern conveniences to make it a great home kitchen.
We commissioned a giant, long custom copper hood with two commercial grade blowers and filters over the stove area. We had to route the exhaust through a 90 degree bend and out to the side wall next to the kitchen.
That huge, powerful hood let us install a (non-commercial) Viking wok burner next to the (non-commercial) stove. That hood is really essential to how I like to cook. Our next house when we move will have a kitchen remodel that starts with a great hood and vent system as the primary consideration, and we'll work backwards from there.
The cabinets, counter space and island were non-commercial and aimed at the '20's vintage theme, but at the far end of the kitchen in the cleanup area we went full commercial -- a freestanding large stainless steel sink with two side wings, a large commercial gooseneck spray faucet over the sink, and a disposal underneath. There is a commercial Hobart dishwasher under one of the wings.
I love the Hobart dishwasher, but it has two issues. First, it's really more of a sterilizer than a washer, you have to manually clean off any food residue before loading it. And second, Hobart service can be tricky because they don't usually service residential locations. Our house was a Bed and Breakfast before we bought it, so whenever I have trouble getting a service call, I have to fall back on that and say it's still operating as a B&B.
We're putting the house on the market soon, downsizing for the next one. I still want a nice kitchen, and we'll probably go straight "commercial look" at least, with stainless counter tops and prep area. I would really love a commercial "wet Wok" arrangement with water pool surrounding the burner, but probably can't go restaurant-grade high heat. I'll probably end up settling for another Viking wok burner. I'll try to get another Hobart dishwasher if I can manage it, and get it serviced.