I'm an owner of a V4 Type R (albeit with a few V5 bits) and it's been spot-on for 2 years now.
Haven't got a clue what some folk are talking about, never heard of a bottom end seizing on them that's been built properly. If folk are stupid enough to run them dry of oil or re-use an oil-pump that is prone to failure - Subaru, Ford, Honda etc etc.
As I said, I've had mine for 2 years and it's on a fresh standard engine. Was rebuilt prior to me getting it at 66k miles and it was a faulty fuel pump that caused the failure so I was told. Wasn't too interested as I was buying it with a freshly built lump and everything else had been sorted too.
For the money, I think you'd struggle to find something better on the smiles per gallon front and I would say go for the Type R over the P1 everytime. Stronger rear diff, adjustable centre diff, better rear brakes, close ratio box etc etc. Only thing I'd want out of a P1 is the 5th gear - 3.5k RPM @ 70mph with a 3" Titanium system is loud!!
Here's a few pics of mine to help you along: