There's an obvious problem here about discussing whether we'd vote for "Jeremy Corbyn's new party" that I'm surprised nobody seems to have noticed. That is that (a) the party doesn't even exist yet, and certainly hasn't published any concrete policies, and (b) we don't actually know yet that Jeremy Corbyn is going to be the leader of it.
But some people are sufficiently turned off just by the connection with the Corbyn "brand" that that's all they need to hear. Fair enough I suppose - I feel the same way about Farage.
In terms of general political philosophy, trajectory and values, which is all we can say currently, you need to decide which you think promises a better future:
Reform:
Reduced tax, particularly on high earners / the asset-wealthy
Reduced immigration
Privatised healthcare
Almost complete destruction of the welfare state, public services, state funded education etc. (Farage doesn't SAY this, obviously, but it's the inevitable consequence of reducing the tax take, reducing working age immigration and trying to fund an aging population).
Overall, likely massive rise in inequality, with a small number of rich people becoming even richer and a large number of poor people becoming destitute. For the middle classes, it's hard to determine the effect on them personally. Some of it will come down to values (is it more important to you to aspire to join the rich, or to help protect the poor?)
Oh... And complete meltdown of the climate into unsurvivable termperatures due to abandoning all attempts to transition to a green economy, along with the broader geopolitical catastrophe engendered by that (millions of people from the global south fleeing their countries that are no longer habitable and seeking refuge elsewhere; countries increadingly turning to authoritarianism and militarism to find answers to surviving climate change that the current, fragile system of international cooperation fails to provide).
Your Party:
Serious, funded effort to protect and revive public services, particularly the NHS being kept free at the point of use.
Continued relaxed attitude to immigration.
Restored/increased workers' rights through more powerful unions etc.
Increase tax burden on the rich and upper middle classes to pay for all this (although it's too early to tell whether that will be via higher income tax, or a shifting of the tax burden to wealth taxes / corporation tax / CGT / IHT etc.
Possible nationalisation of water companies, utilities etc.
Reduction in inequality, with a higher and more secure economic "floor" that we accept everyone is entitled to. Harder for the rich to stay rich or for the middle classes to become rich.
Proper action to transition to a green economy, possibly in cooperation with the Green party itself (there have been noises about this), joining up with a more liberal attitude to foreign aid & immigration to help address the effect of climate change on the global south.
That's my tentative, unbiased summary 😃