Product review (5 stars): I figured "Why not? For $8?"  - My fridge has been cold for a week so far!
Old Fridgidaire garage fridge stopped cooling.  Plug it in, fan only, no compressor.  Before throwing it our and getting another used $50 fridge, I gambled and pick up the start kit.

In 5 minutes, my fridge was back up and running! It's been running cold for a week now.  Worth the $8 so far.