I own a Vox Valvetronix AD50VT-212 and I was wondering if this switchboard called the Vox VC12 was worth it.

It seems like an awesome buy because it saves me from buying a bunch of pedals, cause I already like the effects on the amp anyways. Any problems that anyone's had with it or other suggestions?

The VC-12 is essentially necessary to take full advantage of the Valvetronix amps. If you plan on keeping the amp for an extended period of time, then I would go ahead and jump on it (note that the cable isn't exactly "beefy" so keep a spare on hand). On the other hand, if you have intentions of purchasing a different amp at some point in the near future, I would just save the money and use it towards the amp purchase.
ESP LTD EC-256 and a Fender Deluxe VM