Hi there Writing to let you know that I changed the title on the thread to reflect what you're asking in your post!
If a uni is good or bad really depends on who's asking, we all look and prioritise different things when looking at universities so really it's up to you to answer that. But from what I've seen and heard, Queen Mary is a friendly place which has really been investing in itself in the last couple of years to better themselves. Plus apparently the academic staff are nice and helpful. Hopefully somebody who does P&IR replies to give you their impressions of Queen Mary and the course.
Disclaimer: I'm days away from becoming a Queen Mary student so my good words towards it may not be entirely free of bias