Why not an appliance store?
I recommend buying appliances from an appliance store. We bought refrigerator, beverage refrigerator, microwave / convection oven, oven with air frier, warming drawer, washer and dryer from
Milcarsky. We would have bought our hood from them, too, but the developer would not allow that because they could not/would not close without the hood installed. So the only major appliances that were in the house at closing were the Monogram induction cook top and Monogram dishwasher.
Excellent Experience
The experience was excellent. We made an appointment to visit the showroom. We spent a couple of hours looking at our options with a salesman who wrote up the order when we were done. We had either a follow up phone call or email from the owner to make sure that we were happy with everything. We made one modification to the order IIRC and everything was done via email. The sales, installation and service was excellent 10/10.
Milcarsky had to make an additional trip for the oven because the cabinet design was off in depth by about 1/4 inch. The developer had to cut out some of the 1/8 inch plywood in the back to fit the electrical connection. They also came out once to service the warming drawer.
The day after closing everything was working fine, except for the oven, of course, which was not their fault.
In my previous two houses, one a build and the second a kitchen remodel, all appliances were purchased from appliance stores.