Rotten Tomatoes doesn't give it a very favourable review, but I'd need to see it for myself. No sign of it being shown anywhere here as yet, though.
That all depends on ones criteria. Was it a very entertaining movie? That would depend on whether you like the electrical industry and/or also like history...I happen to like both, so I found it to be good. If people want it to be like Star Wars, they will be disappointed...just saying.