We typically hire out for appliances.

The best way to choose appliances is to find a brand that looks good to you, then check reviews of that product.   Consumer Reports Appliances

Some brands I like are: (Fridge- Hot Point, Jenn-air, Kenmore, GE), (Dishwasher- Bosch, Kenmore), (Range- Wolf, Kenmore, GE)

If you are shopping for medium to high end then I think it is best to go to a local shop to get product accountability, and professional installation. For high end visit Specialty Appliance in Gunbarrel, for medium to high end   Mountain High Appliance in Louisville, or Appliance Factory Outlet in Longmont, and Denver