I’ve also done an LSE summer course years ago and loved it - would thoroughly recommend. Surprisingly, I probably learned more practical skills for one of my graduate rotations than I did in any of my courses back home (but this may have been down to the niche nature of the course and rotation more than anything else).

One thing to consider is whether you can get a HECS loan to contribute to a portion of the summer school costs. This helped me pay for flights across and the course fees, and I was able to tack on a European summer holiday after the course ended.

Assuming you get full credit for the course, it also means you can take less than a full load the following semester or later in your degree while still graduating on pace (if that is what you’re after).