This episode reminded me of the My Little Pony G3 episode, A Charming Birthday, which I really enjoyed. It is nice to see new characters from G3 and learn about their personalities with great narration from Razzaroo. Izzy Does It is a mediocre or okay episode? I don't know yet but it is more mediocre than okayish. The plot is okay, but really needs to be expanded a little more and be more interesting. As mentioned in my review of the series, I hate you annoying Sparky is here. There is also continuity errors in this episode. In Tell Your Tale, which was mediocre enough in my opinion (please don't attack me :(), Izzy has a motorcycle (?), but here, she doesn't have one and then she founds one. I guess that Tell Your Tale does not exist. While Earth Pony Magic does exist in TYT, I don't think her motorcycle exist in MYM until she made one. The song "All You Need is Your Beat" is just a generic pop song. The lyrics fortunately don't have the words "sparkle glow shine light" being said over and over again, much like most of the G5 songs since Tell Your Tale so that's some improvement. I do enjoy seeing Izzy being herself again rather than being a Pinkie Pie copy. In Tell Your Tale she was so annoying and I'm glad to see her like that again.
Overall, this is pretty much a mediocre or okay way to start the series. 4/10 - Aussin!