QMUL is a decent university. It’s also popular meaning it may not be a great choice for a fallback uni. I didn’t study geography, but is London the best place to go to in order to study a subject like that?
What is your concern? The area she will be living in? If it’s close to Whitechapel then it’s not great. The missus used to live there and I used to work in Greenwich. Round that way is a bit of a dump. You can build as many identikit £500,000 shoeboxes round Canary Wharf as you want but it will still feel like a soulless prison.
However, things may have changed now.
Personally, I feel like London is a slick operation designed to extract the maximum amount of money from you. I’d look somewhere else.
Also, the missus loved her time in London. But a pretty young girl can get in a lot of trouble in a big city anywhere in the world 🙂