It sounds like it may be ideal for you, at least when you are doing something you enjoy it feels less like work, I think the government should open up more opportunitys like this, I think a lot of people unemployed after redundancy etc can get overwhelmed by it all, like if you are in a well paid managment position then get offered endless jobs like pot washing, till worker etc, it doesnt help your self esteem. at least helping animals you get the chance to put back into life and feel like you are doing something worthwhile!
It also gives rescues the chance of extra help without having to pay out wages which is brilliant.