Anybody here use a mifi type unit for 4G mobile internet? I am after a device to use with the 6Gb EE sim cards (cost around £15, data runs out after 90 days), and takes external antennas, although that's not a deal breaker. I have seen the Huawei E5377s for around £75, although ideally a cheaper unit. EE do the kite which I think is a E5878s-32 for a similar price, or ebay HUAWEI E589 for £50ish.
I would be looking at a small amount of daily use, with larger amounts of use when on a boat (inland waterways), when I would consider adding an external antenna.
Cheers