Hi,
Toughbook in EZY does not use Jeppview. It is only used for Performance, weight and balance, FCOM, MEL, Ops Man and a few other misc docs.
Generally it's a good performer - and it is tough. My previous Company tried it with conventional laptops and they got wrecked - just not up to the job.
My only reservation is the MEL - it's just not friendly to use. Things are not where you expect them etc. However once you do find your inop item it can be automatically transferred across into your performance calculations if applicable.
I think overall, the EFB is a good thing -it just takes a little getting used to.
A4