I had the original solid blue vibe, and I had two onyx vibes. Sadly, I didn't appreciate the solid blue at the time. It is a great ball for tougher patterns. I tried using it on house shots, which is not it's strength. As such, I got rid of it only to regret it later.
The Onyx was a different story. I got the pair for $85 apiece as a PBA member discount when I still had my card, and the ball was amazing. I'm not usually the type to own two of the same ball, but these were fantastic! The onyx was truly one of the most versatile balls I've ever used. With the polished box finish, it was great on mediums with clean backends. It was smooth and strong throughout the lane. If you knocked the shine off of it, it could handle some serious oil, just about anything but a true flood.
Truth be told, the onyx vibe was one of the best all-around balls I've ever thrown, and I've thrown a ton of bowling balls! I pretty much throw all Storm these days, but if I could ever find another Onyx at a reasonable price, I would snatch it up in a heartbeat; it's that good.
All in all, it seemed like most balls in that line were pretty darn good if you matched the balls up to the bowler and conditions, but I guess you could say that about all bowling balls. The nice thing about the Vibes was that the price point was very reasonable, so you got a ton of performance for a very nice price.