How does Ice Cream Sandwich (Android 4.0) taste on the Nexus S?

It has been a whole month now, since the upgrade of my Nexus S to the new Android 4.0.3 aka ICS ...
So, it's time for some feedback on how it has been running so far. Let's start by jumping to the conclusion: it's great, it runs really well and is the best official Android version so far (on this phone at least).
Let's start with stability, it's very stable, app crashes have occured very rarely (and if they do, you can ask yourself if maybe the app needs some work), in fact when I check my phone's Status, it shows my that the last time I rebooted it was over 422 hours ago (and I'm not intending to reboot it soon).
Also in terms of speed or smoothness of apps running, the upgrade has had no negative impact, maybe even a slightly positive one, but to be honest, when things run well, you don't notice really, do you? And if you need/want more speed, consider a faster model (hardware) ... I don't need it.
Then one of the more critical items ... Battery Life ... I admit, I was concerned at first, when looking at the different processes consuming energy, unlike previously not the "Screen", but the "Android-system" is usually on top of the list ... but again, what really matters is: does it work well? And yes, it does. Most days I have WiFi enabled the whole day, Bluetooth whenever I drive in my car and when I need it, I turn on Edge/3G (GPS is always enabled, but only kicks in at an apps request) ... the Google Apps are always syncing (other stuff I tend to turn off the auto-sync and refresh manually, that's how I like it) and the result? The phone get's disconnected around 7:00 in the morning and doesn't get any recharge until around 23:00 in the evening and that's fine ... only on days when I really have been using it actively for many hours, which happens maybe once every two weeks or on an occasional travel day which can start as early as 4:00 in the morning, it might need some additional juice during the day, but to be honest, I'm ok with that ...
Then the general look & feel, settings and options of ICS ... well, anyone who has ever tasted a custom ROM will know that official ROM's like these never offer you as much options, but to be honest, I don't need or miss them at all ... When people using an iPhone tried to explain to me in the past that sometimes simplicity is actually better sometimes, I didn't understand them, I always believed more was better ... but to be honest, this ROM has what you need and nothing feels redundant about it, it's not cluttered with additional options and settings, that are only savoured by a handful of übernerds. No, it's simple and efficient. A clear illustration of this, I experienced when I used an alternative launcher during the holidays (with a fancy christmas theme and extra widgets), as much as it adds more possibilities and options, I was relieved to switch back to my stock version once the consumption of too much food and drinks was over ...
So, to conclude is ICS the best Android version so far? Yes, it is. Can it be improved further? Without any doubt, it can be, but I hope they are able to keep the nice clean feel which they have achieved now.