Associate
I guess you are a Sense person mate so you should have got a Sensation if you like this and no matter what anyone would have said about the GS2 the Sensation is the phone for you.
I personally don't get what the big fuss about sense is it doesn't look anything special to me but each to there own I guess, maybe you should go and play on a Sensation and see if its what you want and flog the GS2 as I doubt you will be happy if you are a HTC man.
I do like HTC there is no point denying it, I have had a fair few but never that loyal to change if I think something else is better. I have had an iPhone 4 for the last 12 months, generally happy with it except it bores me most of the time & then there is apple controlling everything you do.
Like you say, need to have a play with one really first.