Haha
Imo nope, a good and very worthy upgrade overall, the only downgrade would be for the screen in terms of sharpness;
The size of the screen is much better and I personally prefer the vibrant colours and pitch blacks of amoled screens, however, it isn't as sharp or clear as the 4s screen. The X screen is the closest you will get to it for quality and colours followed by the gs 3 screen for sharpness and of course it has more vibrant colours etc. Which I prefer
Feels much much better in the hand compared to the Iphones.
It has a much better cpu, cpu is better than the quad in the x and gs 3
A better gpu as well.
Can't comment on battery life for the 4s, never used one for long enough so no idea how it would compare to the s with my usage, but I get 4-5 hours on screen time spread across 1-3days of heavy usage (can see my review thread for details and screen shots on that), pretty much the best there is for Android phones excluding the razr for obvious reasons
Software is personal preference, I hate ios

Sense v4 is great, I hated the version on the desire stock 2.2 and am the sort of guy who tweaks away with the phone replacing all the apps with the 3rd party ones, however, I haven't done that with sense v4, have kept the majority of sense stuff as it is so good that not even 3rd party apps match the quality of sense v4 apps imo. The apps that I speak of are the camera, dialer, gallery, calendar and sms app (go sms etc. Are better overall but I just like the simple style of sense sms

) I have replaced the stock launcher with apex launcher and custom widgets etc. Though as the sense launcher consumes more RAM and the app drawer is **** imo but if those areas where improved I honestly think I would go back to it as the widgets are great and better than what I am using currently except for snowstorm weather

most accurate weather app for me
I would also stick to the sense browser If it matched the same speed of quick ics browser and allowed me to customize the quick ics controls.
It does come down to personal preference the software, so you will have to have a good long play with sense v4 to see what you think
The camera is pure quality, amazing Ui to it and loads of effects and features, the best one being slow motion recording

You have zero shutter lag and the recording of 1080p footage is good, however, a bit jerky and not great light metering compared to the 4s and gs 3, overall the camera is better than the 4s and that includes quality of photos.
You also get 1GB of RAM
I haven't heard enough of the 4s to judge the audio myself, but according to gsmarena the s has the cleanest audio output they have ever heard, the only device that beats it is the gs 3 and only by a tiny bit.
Think that is the main areas covered.
Btw sorry if some of that doesn't make sense, was typed from my phone whilst lying in bed
