On paper it is seductive, but in fact the gain is still limited, do not think take two days longer. That this account in a few hours maximum.
Moreover, what is annoying is that your smartphone becomes less reactive because every time you go out Eve to use it, he must raise a research network (but not GSM 3G DATA) and furnish the wifi, so the internet such or mms is not instantaneous. This is the price to pay.
