Journey Beyond Sodor has a great plot, quite a few interesting characters, and solid action.
However, there are a lot of things that drag it down, too. There are unrealistic elements GALORE, from the engines' body gestures to Thomas somehow being able to avoid being able to be dropped into a vat of lava and driving on a pipe- it's messy. Theo and Lexi are very annoying characters, (specifically the latter), the ending is HORRIBLE, and the songs are hit-or-miss.
5/10. I can't decide if I would recommend this or not. It's a hard choice.