It's a mixed manifesto. Some is great, some less so. Funding public services, the most deprived, protecting the NHS, welfare state, increasing police numbers, accepting more refugees is all excellent (as is renationalisation in my opinion though I'm not sure their energy proposals would lead to that). What's happening to the NHS and welfare system is horrendous.
However, you have to worry a little about how it'll all be funded. Then again, the Tories are managing to mismanage the economy and get off without much of a challenge on it, and all whilst obliterating public services and causing widespread increases in poverty. Also, the idea of Jeremy Corbyn as Prime Minister isn't a good one. I'm not particularly keen on him personally, I think he's not got the greatest history when it comes to misogyny amongst other things.
I hope Labour have an excellent, centre-left leader one day who can fight them back into power soon.