First off the cashback payment I still haven't received after 8 months but has just been approved took a ridiculous amount of time. It's the reason I went with them and I wish I didn't,
Their support is terrible, I asked for help with the Broadband around 8 times on their forum and received no answer for 6 weeks then all you get is copy and paste replies that blame your house/landline etc. Anything except admitting it's their bad infrastructure so they don't have to do anything.
I'm on a brand new land line and the exchange is outside my house and the broadband gives me a worse ping than I got in 2001 on dial up.
I honestly will never use Sky again.