I use Channel 4 almost exclusively for my tv viewing. I hate adverts so I pay £39.99 for a year ad free. For that I enjoy a good range of films, watching 6 a month. The range of Walter Presents dramas provide months of high quality tv viewing - choose according to your taste - but I have just finished Carmen Curlers and enjoyed 6 series of Seaside Hotel a few months ago. Some of the shows are low quality but this applies to any channel - you need to be selective. I enjoy Kirstie Allsop's property shows. I have few problems with connections, perhaps once a week? I'm surprised at the negative reviews. If you watch with adverts it doesn't help, but I wouldn't.
