I have not bought any fish from Kenny...yet! I have my eye on a few, but lack the funds. Saving up. But, he is highly regarded on Simply as is Hans. I don't think you could go wrong with either. I really would recommend getting the biggest fish you can afford. Even if it is a 3 inch versus a 2 inch. It is tempting to buy the smaller...they are cheaper...sometimes a lot cheaper! But, they are also harder to care for and easier to fall sick if stressed.
So, that would be my biggest suggestion.
So, that would be my biggest suggestion.