Shevchenko is a very knowledgeable and very fair (as in he is pretty unbiased in his lectures and will not try to inject too much of his own subjective musings) professor. However he DOES tend to ramble and speaks very very fast. This combined with his accent and habit of jumping around is the only thing that made this class more complicated than it should have been. I took 120B with him and it was a nightmare trying to listen to him talk about 7 different IR models at the same time. PS135 (Politics of China) was a little easier, but maybe because there was only one country to concentrate on instead of the entirety of IR. Overall he's a great professor, just be prepared to sit forward in class and try hard to "coheratize" what he is saying.
Summer 2020 - I don't know where the hell all of these good reviews came from. This guy is a grade A scumbag. I am taking his class during the COVID disaster Summer of 2020. Everything is virtual. From the get go, in the class people started dropping like flies because of his demeanor. He doesn't have actual classes but instead has a monotone lecture over power point slides. A couple of students asked if he could change the recordings because they had trouble hearing it and his response was essentially, it sounds fine and get over it. That was the first red flag. The second was that a couple people asked him to have office hours and he refused and just said to e-mail him. Despite the fact that according to the UCLA Summer Sessions website, professors are required to have at least one hour of office hours a week. Plus with everyone at home during the pandemic, WTF else are you doing anyway that you can't take the time to talk to your students? He took his sweet time grading the midterms. According to the class group chat the average was a 23 out of 30. He is a stupidly harsh grader. He limited the ID responses to a page each and I think his expectations were way out of line for responses (I say this as a senior with a 4.0). All in all this guy 100% does not give a rats ass about students and is a general POS.