If you have kids and/or your pockets don't extend that far then ignore all the hyperbole on the T-R. And don't bother actually trying one, it will spoil you for all others. Personally I'd give my left testicle for a T-R but for myself and most other people in the hot hatch market it's hugely restricted by its seating configuration, and to realise its full potential it relies on the Cup 2 tyres which are an added compromise. A brilliant weekend toy - one of the best you can get - but your circumstances really need to accommodate it. For me this is the reason why the T-R can't be the best ever hot-hatch (an accolade that surely must go to a car which retains the inherent practicalities of a hatchback. FWIW a 275 optioned with the Ohlins suspension (as available in other markets but not Oz) would probably take my vote for that prize, and an example in that exact spec - with Cup 2s - was measurably faster around Anglesea circuit in the UK than a Golf R in the hands of EVO magazine. But I digress).
It's difficult to explain or describe a driving experience so I can only echo No152's advice, which is to buy a Golf R and... shit - no, sorry, I meant get out and drive some examples of the Meg 3 and judge for yourself. Remember though that pussy-foot around in any Meg 3 and you'll step out underwhelmed. It doesn't do the instant gratification that some others in this market segment do so well. You do need to push it to appreciate what it can do.
Go, experiment, have fun. Report back.