I bought a Rottendog's WPC89 MPU for backup and its up on my funhouse since 1 year and I havnt found yet time to fix the original; it works really fine by the way.
Even if Pinled is in Europe and Rottendog europe reseller charges a bit more these US boards I preffered the Rotts because Pinled is SMD while Rottendog is Trought Hole designed and very close to the WMS original boards and "homebrew" fixable.