I've only had my 450h for a short time, but am blown away by it. As with Mgoblue96, mine is a fully loaded, orphaned unit. The cabin is a wonderful place to spend time, for driver and passengers alike. It's quiet, spacious comfortable and very refined. The drivetrain is excellent -- relaxed, but has a good bite when called to attention. Trunk space is surprisingly good, but I haven't had need to fill it, yet. I never get tired of the silence at stop signs or lights, and while driving in EV mode. Nor do I miss the frequent trips to the pump that were part of my past. If I had the chance to go back and do it again, I would still buy this car in a heartbeat. It's phenomenal.
I agree with the comment about the extra cost of the hybrid over the gas-only variants. For me, the decision to drive a hybrid is about using less fuel, full stop. The arguments about time to recoup the price difference, etc. miss the point.