Private universities?

I've been looking into this recently, and there seem to be a few private or 'independent' universities now operating within the UK. What's the consensus surrounding these? Like private schools, do people think they might offer a higher standard of teaching? Are they full of private school kids?

So far I've come across:

BPP
Regent's College London
University of Buckingham
College of New Humanities

Does anyone have any experience of these?

Like private schools, do people think they might offer a higher standard of teaching?

Do the entry requirements work the same for Regents? and finance i.e. student loans, maintenance .. does it work as it would for say UCL?

First of all in one sense all UK universities are private, in that they are independent educational charities. Having said that, there are several universities which receive no government funding and as such have a different level of independence.

BPP, Regent's, Buckingham, University of Law, IFS School of Finance and Ashridge have degree awarding powers.

New College of Humanities is not in any sense a university. It is a private college preparing students for London University degrees.

BPP and UofLaw are full of intending lawyers. The others are full of internationals.

Not quite, Student Finance will only give out tuition loans of up to £6000 a year to go to a private university