Reflecting back on my own experience...
A personal view
I studied at UCL a long time ago for my undergraduate degree (known as a LLB). After qualifying as a Chartered Accountant and working in government, and financial services regulation and banking I came back to UCL to do my Law Masters (a LLM) and after completing my Doctorate I was appointed as a Lecturer at the Laws Faculty. So you can see that I enjoyed it so much that I never really left.
I found it an astonishing experience as an undergraduate to live in central London and to study law at UCL. They were three very enjoyable years that passed all too quickly.
It is worth mentioning that it is highly competitive to get in but on admission you join some of the best students in the world at a Faculty that rates among the few most highly regarded places to study law in the world. This is reflected in both the academic staff and the students who come from across the globe.
Besides all this there are a few things worth noting.
Everyone, both staff and students, are very friendly. Many of the students form their own study groups to help each other. There is a large cafe and lounge area in Bentham House - the main building for law students and staff. It is always full of students working and chatting. It is a great place to make friends with fellow students from around the world. Students find the staff are very approachable, helpful and caring.
London is an amazing city to live and study in and UCL is right in the middle of it. The Bloomsbury area, where UCL is based, is a network of lovely garden squares. In fine weather these are dominated by students sitting on the grass in groups.
The work is intense with lots of reading, lectures and small group tutorials. There are a number of libraries and other work areas. It is important that you get a sense of whether the law is the right subject for you before you apply. There are lots of short internship, summer schools and introductory classes offered by UCL and other places which you should apply for to help you decide.
Other activities (eg moots, Access to Justice)
UCL has a vast number of activities for students. Law students, in particular, enjoy public speaking, ‘mooting’ (mock trials) and helping with the ‘Access to Justice’ programme. The latter is a UCL free legal practice based in the East End of London helping people with housing problems and issues with social security and health.
Anyway, these are my personal views. There is much more but I hope that it gives a sense of what a wonderful place UCL is and why you should think about applying.