Peacock bass are great fish, their personalities are unmatchable in my experience, i've kept most species of rare fish and nothing has an attitude like these guys, i've gone and bought fish where people have told me their fish is a real character, vicious at feeding time all that stuff.
Push come to shove, in with the peacock bass EVERYTHING is a background fish, mine will stalk me up and down the tank knowing i could throw them food at any point, they will hand feed if i try it too.
You can't go wrong, all i would say though is what Gangster says, take your time, do your research, see what one you like, don't let anyone tell you that an Orino isn't any good because their cheap and common, don't let anyone tell you that Mono's are basic and not worth bothering with just look at some pictures, look at some video's and see which you prefer the look of and then go and get some good quality ones from a reliable source, don't buy cheap and end up with some farmy hybrids else you will always be disapointed.
Get the real deal, you'll never look back
Empty your inbox bro!