Here's the first proper review (I've seen) of the "affordable" Medium Format camera.
They like it, and so do I...
Luminous Landscape has also reviewed it and offer a different conclusion. You have to take into account that Michael Reichmann used to use medium format but based on his age (gear weight) and the increase in quality from high MP dslr and mirror less, then he questions whether medium format has the compelling advantage it used to enjoy.
That being said, Michael still uses a phase one I believe, but less than he used to.
Ultimately it depends on what you want to use it for and where. Certainly the Pentax makes the best bridge in functionality between dslr and MF, and if money were no object then a MF camera plus lenses would indeed be appealing. Alas I don't make money from my photography, so the £12k I figure it would cost for a body and lenses would be a large investment and for me I think a high MP dslr (Canon preferred) or as an interim maybe a Sony (still put off by lossy compression on their raw files but at least I can use Canon glass) will be a better and cheaper investment.
Either way, Pentax encroaching on 1D / D4s territory is good for us. Be interested to see if Sony are allowed to launch their own medium format into the market - I figure that would undercut Pentax by a couple of grand....