I saw STB yesterday afternoon, and also on Labor Day weekend. I have not seen the previous two films in this series, so I went with an open mind. Having watched the original series when it first aired (as a young kid) it did take a moment to get past the new actors, but as this is for a new generation it took but a few seconds to get used to that. I think casting did a very good job, and the actors seemed to research the original characters to get their "thing" down, and they did so very well, IMO. I have never seen any of the F&F films (the trailers I have seen back in the day made them out to be way too adolescent for my tastes), and given today's penchant for special effects being the real stars in movies, I was impressed enough with STB to see it twice two weekends in a row. YMMV.