My advice with IPTV would be try it out before you get rid of sky.
You've got to be prepared to be without WHEN it goes down (and don't let anybody tell you it won't, even if it's just for a few hours every now and again)
You've also got to be a bit technical for changing apps/settings regularly, especially if your internet provider do blocks when the footballs on (nothing a VPN won't sort, some providers now build in VPNs in their apps)
And worst case, be prepared to lose the yearly subscription fee. (I've lost out once when my supplier of the previous 2 years got raided just after I'd handed over £50 renewal.
If you can live with the above then ditch. I got rid years ago for IPTV and haven't looked back but I've family who've jumped in, couldn't be arsed keeping up with the maintenance of it and have gone back to sky.