I've kept one a couple years ago and gave mine away.
There are differing opinions/experiences, but I chose to give it up because it would always try to capture my smaller fish, i.e male maroon clown. If he goes near the shrimp, it would try catch it. It is just very territorial and agressive.
If you have a big problem with bristleworms, although most are good for the system anyway, they will keep its population in check. I see mine hunting and holding onto a worm at night. Very active at night, and usually hangs on an overhang of rocks during the day.
They will fight other shrimp species for territorial space.
I replaced the shrimp with a Skunk Cleaner shrimp because not only is it less agressive, it naturally cleans fish of ich, etc etc. It's nice to see my fish actually like being close to a shrimp for cleaning, rather than getting close and getting snapped at by a coral banded shrimp.
I would advise that you do not get 2 coral banded shrimp, unless they are a mated pair. You will get some bad territorial fighting from 2 males.
Have you also looked into the Golden Coral Banded shrimp? I have not had experience with that coloration, although it may be less agressive.
- Elmo