Assuming we are talking about he Pilot 34:
I have owned one for the last five years. It has been a good, solid boat.
I won't belabor the obvious- the layout. Some like the lack of a flybridge, some don't.
Mine is a single and unless you have a small monkey type frame or pay the yard to do all of the work, I would stay away from the twin. The single provides plenty of performance- 15 kts at a comfortable fast 2,800 cruise. But it is noisy at that speed, but so is the twin.
The Rumrunner package has a lot of good stuff: A/C and NextGen generator principally. Worth the extra bucks IMO.
The hardtop is also more expensive than the soft version and I like the security and ability to mount stuff on top of the hardtop.
Storage and fridge space is limited, but we get by for a week at a time. I wouldn't consider this boat for a long term GL type cruise.
You don't see many with this added feature, but the bimini over the aft cockpit is a great addition. Gives you a nice place to hang out in the shade at anchor. The Weaver davits also work well to store the dinghy flipped up against the transom. Check out my avatar at the left.
So in summary: no real vices; the single Yanmar is a solid engine; performance is good but noisy.