Hi!
Yes, I have done thorough research on this and have been advised by immigration that the processing time for this Visa, when applying on-shore is around 8 years at present.
I am happy enough to have the reduced health care and pay for private health care. In comparison to the NHS in the uk, it's better.
I'm 28 at the moment, so pensions aren't a concern just yet. As long as I have a work permit i am not fussed about the financial side of things.