We do believe that we are on the right track to offering a good Uncapped experience. From chatting to our team, I've learned that from the feedback on this forum, we are tweaking the unshaping already to try to deliver the best value to clients. We were previously seeing most clients shaping relieved by only around midnight, but we've now tweaked the system to have most clients less shaped or unshaped as early as 10:30 or 11pm. There are still some clients with high usage patterns who are only seeing their shaping removed by 2am or so, but they would still probably see lighter shaping throughout the evening.
We're also analysing regional networks for the best performance based on usage trends. We've noticed that the South seems to peak and drop off at different times so we've adjusted the shaping to be relieved later in the evening, starting closer to 11pm, and we're also instituting shaping later in the morning, at around 8am. So South users have the same window to be dynamically unshaped (or shaped if demand is high).
Having said that, it should only really be very heavy users seeing their accounts still shaped after midnight. So I'm happy to check your profiled on a case by case basis to see if the system is acting as it should to ensure you're getting the best experience we can give you.