Ryan has shown himself to be nothing special and he didn't go far in selling his ‘plan’ (it wasn't a real bill as he pointed out many times on the defensive) when he got House Republicans to vote for it. He started saying ‘its only a idea to start the conversation, not a real bill’ to defend himself
Ryan did join Pelosi, Boehner, McConnell, Obama in voting for the debt limit deficit reduction bill, the one that the same Republicans are now calling the doomsday budget cuts and and trying to repeal. This was a real accomplishment passed into law that they braggged about and now they disown it claiming it's all Obama's.
I personally think the whole thing was a non-serious scam to hold off primary challenges.
Ryan is not especially charismatic either.
-Medicare Plan D
-Every Bush budget, no cuts
-No Child Left Behind
-And, his 'plan' increases the budget and his 'cuts' aren't deep enough