OK. I thought I had the 500 amp version but I actually have the 450 amp version (900 peak amps). I haven't used the jump start feature (haven't had to yet) but it also has a 12 volt adapter so you could plug something into that, and a place for your USB cable also for cell phones I guess. It also has a light on it
As far as the compressor goes it works, however it is a little slow. I guess for it's intended use (emergency or not every day use) it is fine. It took about 3 minutes to take my tire from 75 to 80psi. The built in gauge was surprisingly accurate, only a pound difference between my pressure gauge. The only potential down side is the air hose is only about 2 1/2 feet long. What I like about it is when charging the device you don't need a special adapter, just an extension cord that plugs directly into it. All in all probably a nice thing to have in thru-storage if you have space. It also comes with some other adapters to fill bike tires and a needle for sports balls. Don't know how much this one cost but if you needed it, I'm sure it would be worth the $.
