Is there a specific brand that you might recommend for longevity or ease of repair? I think my Whirlpool is 15 or more years old and I have experienced ice maker and water solenoid problems. I gave up on both due to freeze damage of the overhead copper supply line. I have considered replacement of the line with PEX but a counter top ice maker is presently taking care of my needs since I live alone. I run the unit long enough to get a weeks supply and dump it into the freezer ice bin to have colder ice.
I do have the special brush to clean the coils but I can't recall the last time I cleaned them so I am very lax on maintaining the fridge.