Just as good as its predecessor, perhaps even slightly better in moments.
All in all I narrowly prefer 'The Computer Wore Tennis Shoes', but 'Now You See Him, Now You Don't' most certainly still produces solid fun. Everything revolves around invisibility this time, the stuff that Dexter & Co. get up to is suitably entertaining.
Kurt Russell reprises the role of Dexter, again positively - no surprise he went on to become such a well known star. Cesar Romero is also good for a second film running, as Arlo. Joe Flynn gets a bigger part as Higgins this time, he's definitely better in this production.
For the majority I felt it was superior to the 1969 original, but the third act drags ever so slightly to the point it brings it back down on a similar footing. Still, this is Disney's best live-action sequel up until this point - way more enjoyable than 'Son of Flubber' or 'Savage Sam', among others.
Can they make it a hat-trick of fine films with the other sequel in 'The Strongest Man in the World'? Hope so!