@Troopa: You should consider substantiating what you're saying, Virgin have recently invested huge amounts of money to upgrade existing networks with new equipment both in the headend and out in the access network, both for capacity reasons and in preparation for DOCSIS 3.1. They're also investing heavily in rolling out FTTP/RFoG to many new areas, so I wonder what exactly you'd like them to 'invest' in that they're not already doing?
It's very easy to sit back and criticise companies, and it's hard for large companies to appear perfect in the public eye, but unjustified criticism is unfair and helps no-one.
Virgin Media is currently part of Liberty Global rather than an independent company, and with that they have plenty of scope for investment.
WRT price rises - why do you think these are unjustified or unfair when compared to the rest of the market who also raise prices when the need arises? VM have continued to invest in offering higher speeds to customers, and said customers are using far more bandwidth year-on-year, which despite what many people think is not 'free' or 'unlimited' at the ISP level. How else besides customer bills would you expect a telecoms company to make profits?
@ik9000: No issues with any streaming on SH3 here (standard router mode for now, haven't bothered switching to modem mode plus own router for now even though I used to do that), including Netflix/Prime/iPlayer/etc on a fire stick/computer/Virgin box/etc. I don't really use VPNs often but have managed to use them successfully through the connection with no noticeable issues. Wouldn't touch anything like alexa with a bargepole so couldn't comment on that. I'm not suggesting you switch for the sake of it, but with the latest firmware it's not necessarily the concern it once was if e.g. it's the only thing putting you off a speed upgrade you wanted. It was a factor in putting me off switching back from BT a while ago so I also waited for better firmware and feedback on forums.
The hardware isn't perfect and it will be interesting to see what the SH4 offers, but I'm OK with it for now.