The Walking Dead VS Heavy Rain

[ghettoglamour]

I loved Heavy Rain, really, it's one of the best 10 games I've ever played. Need to try out the Walking Dead yet, but it's not translated into my language (and doesn't seem it will be anytime soon) and I don't know what level of English is needed to enjoy it without any restriction. Does it have subtitles at least?

I'm playing Persona 4 Golden in English right now and it's not an issue at all. Should I try this out too?
How many hours is the full game?