A nice flavor and can help sleep just the right amount.
To put it simply, it's a pretty nice gentle flavor and it will help make you a little bit sleepier. If you take it every single day you might see diminishing returns, but so far it's been very useful for the odd night where I have trouble sleeping. Overall, I consider it a benefit that it doesn't knock you out too hard, it just helps you get to sleep a little quicker and more easily, but you don't feel a tired haze the next day from it being too potent. I've even taken this on nights where I couldn't get many hours of sleep and I still woke up just fine.