I got my renewal today from vhi for pmi 26 12 , it is a corporate plan and when i compared plans a couple of years ago it seemed an improvement on plan b in every way, including day to day medical costs, its coming in at just over 1000 euro.
Still you should narrow down a few options through the hia website and decide which is most important for you.
The plan b seems a bit of a money spinner for vhi , charging more for less benefits because people don't want to take a chance with their health cover