Nic is overblowing the value of the LLM. It's not a real degree and the "dissertation" is far shorter than a proper one. I've heard of very few instances where anyone has gotten any use out of it aside from the access to funding or visa eligibility.
BPP doesn't have paid student reps come into threads and advertise, so you won't get something from them in an official capacity, but as someone who went to BPP it's awful and ULaw is a better choice simply because it is slightly less awful. However, if you are trying to go into commercial law, I would recommend you don't self-fund at all and only do the LPC when you've secured a TC where the firm will pay for it for you.