I'm also quite suprised how bug-ridden Sky Stream feels since I would have thought that after Sky Glass preceeding it by quite a long time many of the basic issues would be sorted out. Many of the apps are horribly slow (really cheap hardware I suppose), watch from the beginning is still quite hit and miss, the screen occassionally flickers to black and once a month or so the box just spontaneously switches off (way before any eco setting would think that's a good idea). When watching a paused stream it also sometimes spontaneously stops playing back from the buffer and jumps forward to the live stream. Programs also seem to come and go from my continue-watching list and I have to go back to search for a missing program and select the latest episode to get it to show up again.
There are also some very perplexing (to me) UI decisions e.g. no way that I have found to explicitly remove a program from the continue-watching list. Another one that bugs me is that after carefully crafting my list of favourite channels I can't set the TV guide to automatically start on my favourites - I have to explicitly go left to the category selector and select favourites every time I open the TV guide.
I'm keeping mine because I love the concept of not needing a dish or aerial and not having to worry about weather disturbances which could cause me to lose signal on both Freeview and Freesat in heavy rain, and I like having my Netflix sub bundled into the subscription, but it is definitely something of a love-hate relationship at this point.
Maybe in another year the software will actually be mature but I wonder whether, if it is down to under-speced hardware, the issue of apps like iPlayer loading so incredibly slowly will ever be fixed. That's a shame because if it is down to hardware limitations as opposed to something architectural and/or really inefficient coding then personally I wouldn't have a problem making a one-off payment of £100 or even more to upgrade to a box that was powerful enough to give much quicker load times.
