Bests & Worsts Reviews from Amazon

Could easily top up 2-3 psi reaching goal of 30-35 psi on our three different cars and also inflated spare tires from 20 to 60 psi. Also used it to inflate lawn tractor, snow blower, wheelbarrow tires, bike tires and basketball. It's so fun to use this. Compared to my other portable compressors (Craftsman, Stanley power station with compressor and another Coido tire inflator got from Costco), this AstroAI unit is faster and quieter. It's sound is smoother with low pitch unlike others. Here are some pros and cons: Pros: - Faster & Quieter - Auto shut off at preset level - Lighted tire gauge - LED light - Accurate (fills slightly higher, it's fine) - Sturdy and looks very good quality. - Carry bag Cons: - Connector is screw type and may lose air if not removed fast enough. To compensate air loss, it fills 1-1.5 psi higher than preset value. You may also minimize the air loss by pressing the cord into the connector with one hand while unscrewing with other hand. At the first hiss of air loss, release the cord and continue unscrewing. It could be difficult to remove it fast enough during winter times wearing gloves. No such issue with lever type connectors. - Above 35-40 psi, it runs slower with engine off and cannot fill above 50 psi. It runs absolutely fine with engine on. It may be due to higher DC voltage with engine running (14V) vs lower voltage (12V) with engine off. So, you need to keep the engine running if you like to fill that spare tire which needs to be kept at 60 psi. It ran fine using the DC socket on Stanley power station which measured 13V. - First unit I received was defective and preset shut off stopped working while inflating spare tire to 60 psi. Also, it became quite hot after using about 20 minutes! AstroAI quickly replaced the unit and new one has no issues. I wanted to give 4 stars due to above cons but this became my go to unit among all others and a better one overall, so it deserves 5 stars ! I will update if it fails me anytime as I keep using it !