Hi all.

Is there something significantly better with the LAC model and its built in 4G sim slots and antennas, vs a 2866ac and a USB 4G dongle?

The price difference is over £200 and the LAC doesn't seem to be in stock at most retailers.

We have G.Fast as primary supply, and want to have 4G as a failover.

We are in London. Do the antennas give a substantially better signal than dongles? Any recommendations on a dongle?

Thanks.