It would have to be a lot better to overcome the disadvantage of being centralised. I'd sell my ghash.io-coins as soon as I could find a buyer to increase my bitcoin holding.
If it solved conformation times, block chain bloat, tps and centralisation. Then we would all be happy, no? so long as it was marketed well. With those problems solved there would be no limit to scale and therefore no limit to the value of bitcoin.
All im saying is we are all praying that Gavin and satoshi are working quietly somewhere on a hard fork to solve these problems. But it might not be Gavin and team or even Satoshi that solve it. it might be done through the feared 51% attack.
If these problems are not sorted out soon it wont take too many Zynga's and overstock.com's coming on board to cripple bitcoin.