I Joined three's 4g home mobile broadband service at the end of August 2019. Went to a local three store, signed up, left with a Huawei B535 router. Initial impression was absolutely amazing. During the first fortnight I got over 100Mbps consistently 24/7. However after this point the download speeds started plummeting. If it was a coincidence that this was the end of the cooling off period or not, who knows. By December 2019 I was lucky to see 60Mbps during the day, dropping to 30Mbps in the evenings. Then new year 2019 happened. Between 29th December and 5 January the service nose dived into uselessness with numerous hours in the day having zero connectivity, or just having no bandwidth availability at all. It became the norm during this period to reboot the router numerous times per day just to get connectivity. All during this time my router reported 5 bars and great signal. Over the entire of 2020 the download speed has continued to fall. Now I am lucky to see 40Mbps for 3 hours per day dropping to less than 10Mbps in the evenings. Three customer support proves utterly useless in solving any issues, I wouldn't even recommend ringing them to report problems. It'll just frustrate you even more. Three is well aware of its problems, but continues to ignore its customers whilst signing up more and more to 24 month contracts. High contention is the norm now. Avoid.