To be honest, I loved watching the program but then I also have the ability to be concious of the fact that it's a TV show and not a documentary.
I enjoyed watching the stuff get built, I ignored the constant 5 minute stress updates to deadlines that they weren't going to meet (but naturally were for the effects of TV).
If you can see past all the scripted bollocks and take it a little less seriously then it may be enjoyed for what it is.
Personally, I've also learnt stuff from watching the way they do some of the things as well.