If your on win 10 open the page in edge, Then click the three dots top right and open with IE worked for me.
For the sake of a tenner then yeah its probably worth it if you think you would be interested and think it would be something fun to do or would get a sense of achievement from completing it.
I am in firefox. I physically had to delete their cookies by hand whilst not on the site. Then clicked the link. There is a cookie in the folder called 'first time visitor', thats the one that needs dumping.
I've just downloaded all the gubbins (Visual Studio and Unreal Engine) as instructed in the first lesson. Can't wait to get started.
I'll let you know in a couple of weeks. Joking aside, the course notes say it's suitable for complete beginners who are willing to work hard. I take that to mean it doesn't walk you through the elementary basics of coding, Janet-and-John style, so you'll have to do some research and learning on your own initiative alongside the coursework. I studied program design in college for a year-or-two and learnt a couple of languages but that was so long ago that Jesus was still a boy. So, I'm approaching it from a similar position to you.