What you put on the roof, standing seam metal roofs cost more than "comp" shingles, "archetectural" grade (dimensional) shingles cost more than "3 tab" shingles.6.

Most of the time the transition strip is a thin metal it looks pretty snappy when replaced with a piece of sold hardwood and it is easy and cheap.   2. 

I'd rather pay for the cheap filters than deal with bigger issues like coil cleaning. 

[asphalt shake, wood shake, metal tiles, clay tiles, concrete tiles]

The Low-E coating had failed and began to oxidize causing a metallic "cloudy" look which the buyer's asked to be replaced. 

Washers and dryers can be abused (it's hard to abuse a refrigerator) by putting too much clothes in, not cleaning the traps, etc, and a microwave can be run with no items, metallic items, etc. 

The current tenant met all of our criteria, background check etc.

There will probably be a couple that bring up the point that that changing filters every month or the A/C coils freeze doesn't sound quite right, just as is being done here.Having a regular HVAC guy inspect the setup from the start would have kept this a nonissue.

If the thermostat is set too low it will develop ice/frost on the coil inside of the unit.

The most common issues are dirty air filters, bad capacitors (usually go out in summer and can be ordered for less than $10 on Amazon), bad breakers (usually trip in winter with electric step heat), dirty coils (I clean coils during tenant turnovers), bad thermostats, and low refrigerant.