lol I give up.
Sorry mate I do appreciate your input and Xilo does look like a really good ISP with very cheap ongoing costs.
But I can't justify the extra £40 (or £20 in the case of Viva) up front costs over and above another ISP that can for all intents and purposes offer an identical service.
I've just moved and purse strings are drawn tight, perhaps when I am more flush with money and I've been able to build my float back up that went missing when I handed over the deposit I can consider a more expensive option but for now, £0 installation + 2 months free for an identical service wins it for me.
Doesn't mean I'll be with BE forever, but for now it makes the most sense.
Again, thanks for all of your input, I'm really glad that Xilo and Viva offer excellent products, and I'm greatful that you have brought to light the superb features. Will defo be a future consideration