Hmm that's interesting. I've had a totally trouble-free service for about 2 years until about 2 months ago. In the last 2 months though its been up and down a bit.
Yep - all that stuff is fine. I work from home and occasionally need to download (and upload) large files - usually installation binaries for large systems that I will subsequently upload somewhere else for installation. These files may be many gigabytes in size. The time taken to download...
With the Virgin hubs, you will have 2 wireless networks available, a 2G and a 5G. Make sure you are connecting to the 5G. The network card on your laptop must be capable of using the 5G though. If it can't, this is your limitation and you will need to use a wired connection as suggested here...