It's hard for those of us in the states to really say if something like that is any good, we don't know what you can and can't get. You see very few boxes like that at the field these days here. It's too easy for us to convert our starters to 18 volts and be power panel free, almost no one uses the panel these days. As huck said, you can use as hand pump for the fuel, a glow igniter for the plug and a battery installed on your starter. How you carry your tools and STUFF is up to you.
I carry way too much stuff to the field but guess who the guys come to when they need something.