The Lifetime ISA is good for buying a house.. just a Help to Buy ISA where you can put in more money.
However unless the rules change (which is likely), I think you'd be better off investing in your pension in most cases. Cash ISAs tend to have terrible interest rates after a few years.
So unless the give you a stocks and shares option, then I really can't see a benefit of this. You can put money into it until you are 50, but can't take it out before you are 60.
In its current format, unless you can invest in stocks and shares, then it's likely not going to keep up with inflation.
Edit - The Guardian are saying it will likely let you invest in stocks and shares... So you can scrap that. It might be a decent pension alternative.
http://www.theguardian.com/money/2016/mar/16/what-is-a-lifetime-isa-budget-2016