Okay, so this little beast just saved me from being stranded in a Walmart parking lot at midnight. My old truck decided to die right after I loaded 50lbs of dog food (typical).
The 4000A peak is NO JOKE - started my 6.7L diesel like it was nothing. I didn't even have to wait for that awkward 'charge buildup' like with cheaper boosters. Just connect and vroom!
Bonus points for the USB ports - charged my dead phone while waiting for AAA last week (yes, I'm that person who forgets to charge both car AND phone). The QC3.0 port is crazy fast - went from 5% to 60% during my coffee break.
The LED light is brighter than my future. Used it during a camping trip when our lantern died. The SOS mode actually works - tested it to freak out my brother (don't try this at home kids).
Pro tip: Keep it charged! Learned the hard way that letting it sit for months isn't ideal. Now I just top it up with my laptop charger every few weeks.
10/10 would recommend to anyone who owns anything with wheels (or just wants to feel like a superhero when someone else's car dies).