The Browning Fusion that I am familiar with only had 3" of adjustment and 15# of weight adjustment. Maybe there was a newer model I am not familiar with

But, I would make sure it's going to fit you! Have you been to an archery shop and found out what your draw length and manageable draw weight is?
Will this bow get the job done if it fits you? = Absolutely!
Will you be happy with this purchase? = I'm not so sure! It is an easy bow to shoot, but it is a loud bow, has a lot of hand shock and a five year old can almost run faster than the arrows it shoots.
Is this a good buy? = I think it would depend on the accessories that come with it, whether it fits you well and whether it has been taken care of properly. With any used bow of that age you always take a gamble.
Good luck! Hope whatever you get does indeed get you that buck
