Lol..I'm not sure to what parks you have been to, but IJST definatly does not have the best or even moderatly good themeing. All it is is a few shipping containers and rocks and gravel everywhere! :?
All this season and during construction before I had a chance to ride IJST at Pcw I had never raised my hopes of it being a 'good' coaster. When I first rode it back at the beginning of September it actually surprised me and I enjoyed it.
For a family coaster it is pretty decent. The only part I think is lame is the part where the trains swerve around the cars. However, I guess without all the effects working properly I never really got the full experience.
The first helix was really fun and had more g's than I ever thought it would. The tunnel at the end was also fun.
I just hope that the effects are working properly and regularly next season. Of my 3 visits to Pcw this year, none of the onboard effects were working and the water SQUIRT was only working on one day.
I have been to probably thirty or fourty parks, and I feel that other than Disney this is some of the best theming I've seen( Granted my home parks were SFKK and WOF) I still stand by what I've said, and if u dont like it: SHOVE IT!