I can make you a comparison right now. madstad - fugly, TT awesome.
I was at the south sound BMW vendor fair talking with TT. the 800GS looks awesome. The tank isn't as bad as I thought it would be, but I'm not sold on it. I'd rather have something more in the style of the Dakar rally tanks. The Fairing looks great, but the price is a put off. it's not made of any special materials, just plastic; but that is the cost of specialty parts. If they were in mass production the cost could be lower.