So I figured that since the s2 now has ice cream sandwich available, I should look into upgrading.
Doing some research on the internet, I see that it is actually impossible (or at least quite difficult) to go back to 2.3 if I have problems. I've also seen that there have been reports of Ice Cream Sandwich making their s2 have problems such as randomly crashing or the battery runs out really quickly etc.
So is upgrading to Ice Cream Sandwich like a fairly routine thing that ppl do and that I should just do it? Or is it actually quite a risky thing and I could seriously stuff up my phone if I did something wrong?
Also, if it is risky, is ICS worth the risk? Is there like a massive difference or is it just really just a few UI changes here and there?