VIAIR 88P - 00088 Portable Compressor Kit with Alligator Clamps
Results of our analysis:
We analyzed 206,385 reviews for 198 products in the Air Compressors & Inflators category.
We then analyzed 539 reviews for this product. Of these, 101 reviews were recent.
Around 72% of reviews were positive and about 21% were negative.
Final Score:

8.86 out of 10, based on these factors:
What buyers say about VIAIR 88P - 00088 Portable Compressor Kit with Alligator Clamps
You need to shut the pump off to get a proper reading, and I put quotation marks on it because it's not very accurate.
The portable air pump is an excellent safety device for travelling by vehicle.
The direct connection to the battery via the cigarette lighter allows for a more powerful compressor and less risk of problems, as was the case with the cheaper portable compressor purchased after a hose-to-connector leak over a year and only 10 uses.
The air hose and battery are long enough to reach any tire, and the model that came with it was a nice surprise as the ad said it didn't come with one.
I have had them up to 40 psi before, and I'm pretty sure it could fill a tire from 0 to 30 psi completely, if the tire is still fully seated on the wheel rim.