Hybrid Bluegill/Bream have many desirable features.  They take to pelleted food readily and will grow to a large size.  They are easy to catch and taste great.  They won’t overspawn your pond and produce zillions of fish to small to catch.

 They are a good addition to a Catfish Pond, or if you want a Bream Pond without stocking Bass to keep the regular spawning Bluegill in check.

Here are basic quantity recommendations per acre:
    50-200 to the acre in a traditional Bass Pond (they do not take the place of the regular spawning Bluegill needed to feed your Bass)
    100-500 to the acre in a Catfish Pond
    100 to 1000 to the acre in a Hybrid Bream Pond

When you fish for them do not take the largest males.  Young Hybrid Bluegill are putting their growth into body size, not reproduction, so allowing large males to survive lets them eat the smaller fish, thereby increasing their growth rate.  

You should consider stocking 1000 to 2000 Fathead Minnows to the acre when you stock Hybrid Bluegill.  They need the Minnows for food unless you have a well established pond or unless you supplement daily with feed.