I also got a discounted deal. I should have waited a bit longer. There are some plus points, but also some issues. I used to like the old remote, it was well designed and could control my AV Amp and TV as well s the Sky receiver. Now I need the remote for the AV Amp as well. You are now confronted with a menu screen when you turn Sky Q on and you have to press a badly positioned button to get back to full screen. The default should have been the other way around. I used to get the audio dropouts but they seem to have vanished, and I used to have to reboot it at least once a week but that seems to have rectified itself as well. After several months of use here are my conclusions:
Pros for me are 1080p which does look better on my PJ as well as my TV. No need for satellite cables to mini boxes, no telephone connections needed, ability to watch or make recordings from anywhere, skipping a minute at a time is useful, I can get over the ads with a few presses.
Cons are a worse interface than before, badly designed remote, lack of notification when too many concurrent recordings are scheduled, easy to accidentally delete an episode of a series if just deleting the one you've watched (I know you can undelete but this is a faff), you can't properly put the main box in eco mode as the mini boxes will not work if the main is still in eco mode, the new touch sensitive remote is a pile of poo, again, miss the facility to specify how many minutes into a program I want to skip to, I now have to fast fwd or skip a minute at a time, loss of favourite channel customisation (blue button is now useless).
If wifey wasn't adicted to the totally shyte US shows I would also be going down one of the alternative offerings now available. The majority of programs I like to watch are on the terrestial channels or films available via Netflix etc or blu-ray.