Design and Functionality

The design looks similar to a regular cat tray. It needs special silica gel crystal litter, which is highly absorbent. These should last 30 days with a single cat. 

Self-Cleaning Mechanism

A simple rake design moves soiled litter to a covered compartment.  

Quiet Operation

Not the quietest of automatic self-cleaning litter boxes.

Spacious Litter Area

The Scoopfree offers a generous litter area for most size cats.  

Odor Control

The odor control is good as long as the poop of firm. Soft poop can get stuck and leave the trap door open.

Maintenance

Check it once a week and change the litter monthly (1 cat). Easy quick job.

Considerations:

1. The Petsafe Scoopfree falls at the lower end of the price spectrum for litter boxes. While the price is less than half the of some of the other self-cleaning litter boxes, it doesn't come with all the bells and whistles.

2. Maintenance: Although it self-cleans, occasional maintenance is necessary. You’ll need to replace the tray monthly. The rake needs wiping clean to reduce odor. 

3. Power Dependency: The self-cleaning mechanism relies on electricity. Be prepared for potential disruptions during power outages.

In summary, the Petsafe Scoopfree offers convenience, cleanliness, and a cat-friendly design. Prospective buyers should weigh the smaller cost against some of the additional benefits higher end models offer.