Anyone on here use one of these?  They are a portable vehicle jump starter and air compressor.  Last year for Christmas I asked for and received the Audew 2000A portable jump starter (there was a thread on here about jump starters and that one was highly recommended).  Then recently my boss showed me his HALO unit, which seems to be a capable jump starter as well as a unit that inflates tires; I'd never seen these before.  I'd like to know how well the inflation function works (like, can it inflate one or more tires from a flat condition); if it's good at that I'm wondering if I should get one of these for my new 4Runner rather than just another Audew jump starter.
Thanks in advance.
 Thanks in advance.