Coil:
Couldn't tell you what is worse. One day or Mobile Station...
At least new with Mobile Station what you buy is new and not a refurb with no charger, coming in a tray with scratches and damage and a buggered battery...
If I had to choose between those two, I'd pick 1-Day over Mobile Station any day of the week.
First off, today's post provides an example of Mobile Station doing the very thing you're claiming 1-Day does - providing a clearly used phone as if it were new stock - so both appear to be guilty of that.
And then there's the fact that 1-Day is owned by The Warehouse, and as a New Zealand company it should, in theory, be easier to get them to sort their @#$# out if/when things go dodgy.
That said, I've chosen not to buy expensive and/or complex items from 1-Day, partly due to the problems that other buyers have reported. I have bought a decent amount of other stuff from them and they've been ok sorting out any issue.