I've never had a Yuasa leisure battery, but I've had very good service from numerous Yuasa motorbike batteries. Just replaced one that was getting weaker, and I inherited that one from the previous owner when I bought the bike 5 1/2 years ago, and had no qualms about getting another Yuasa.
In my experience Yuasa are probably not the cheapest (nor the dearest), but they produce a dependable good quality product, which is what I want from a battery. They are original equipment in most Japanese motorbikes, IIRC, and I think I read they're one of the biggest battery manufacturers in the world.