I've looked very deeply into all the aforementioned companies, bad reviews for all of them. I ended up signing up with a company I had never heard of (IDNet). They are the most reliable ISP I have ever used (and I've been with Freeserve AKA Wanadoo AKA Orange, BT and AOL). Sure I've never used Plusnet or companies like that but I've read bad things about them. IDNet give you free webspace, a free photo gallery and a free blog, and a free backup dial up number with your internet. They also give you several (unlimited?) free email addresses with web access. My speeds are currently at my line's absolute maximum (8mbps, I had tests done and I physically can't get more) but they also now do 40mbps fibre optic internet. I had an issue which turned out to be with BT, but I called IDNet on a Sunday morning (7am), nobody was in yet so I left a message. Just before 8 one of their staff called me back. You don't get service like that, their support line isn't automated - you get through to someone in the UK.
I don't work for them, I was a long suffering victim of AOL (Always Off-Line) and having working broadband after that is a godsend.
Seriously, give them a try or at least go to their website. They are relatively pricy but you get what you pay for!
That's the problem with on-line reviews and comments. People only tend to comment if they have a negative experience. Also the bigger the company the more customers and more complaints IMHO
e.g. IDNET:
"I moved from an LLU provider to Idnet last July as I was looking for that extra speed FTTC offered and while it's generally been a pleasant experience I have been deeply disappointed with the poor level of customer service provided by Idnet.
I could give various examples of the arrogant manner in which simple queries are dismissed by Idnet staff but the real disappointment was the complete absence of any support at all over Christmas. Coming from an LLU provider with 24/7 support I was somewhat shocked to learn Idnet customer service is only available Monday to Friday during business hours but at Christmas they closed completely for over two weeks.
Granted there was an answer machine where you could leave a message if you had no internet access at all but if you were having problems with your email, a DNS issue, a billing issue, or a general connection issue then you had to wait for over a fortnight to resolve it. What other service providing company would close their customer service department completely for a fortnight?!? Not many that took their customer seriously I'd guess.
Customer service aside the connection is much like any other BT Wholesale connection. It has it's "moments" where the connection becomes the victim of congestion but it would obviously be unfair to blame Idnet for that as they're simply reselling the product from BTW.
In conclusion I've probably been spoiled in the past by being an LLU customer and enjoying the benefits that provides. Would I recommend Idnet to friends or family? Probably not. The customer service is just too poor (when they're actually open that is!) "