Harold, besides the steering issue'it's pretty out the box ready to go. I fish in somewhat nasty weather all the time, and this PA can handle it pretty well. I tend to keep the nose into the chop like any kayak, and the wind does move it around a little more than my Adventure and Sport; but it is very manageable.
The drain plugs under the seat can be baffling as to their design as far as placement, but with a little effort can be managed as well. Not an issue, but you asked as to improvements and this is one of them.
The PA handles the salt like a charm, and if you're use to other kayaks it's a step in the right direction. One thing I find hard to believe is how dry of a ride it is, I'm spoiled now.
As far as carts, the new KFS version cart with longer posts AND a set of Rolleze 30cm tires is or should be madatory; Hobie may be reluctant to warranty a blown out scupper hole otherwise with shorter cart posts.**** The KFS carts from last year have been re-designed with longer posts now...so your old KFS cart will not be sufficient on the PA. I now have both carts...not my choice, but out of necessity.
Transport if you have a pick up truck is simple, and much easier to load/unload than any other Hobie I own..because your not lifting it 100% off the ground. I'll be doing a youtube on this ASAP. Getting it on a roof rack will be a challange in my opinion.
I keep mine completely rigged all the time, add the rods before transport. When I'm ready to fish, the yak goes in the truck and is strapped in well under two minutes. If there's a ramp at the waters edge you can be fishing in the same time-frame as well; after you park your vehicle naturally.
I'd test drive one of these Harold first, then the decision will be a simple one. It's unlike anything out there, and is beyond ones expectations. Simply put, Hobie makes an outstanding product...and their product line is always getting better. The PA is a winner.
If you want additional photos of mine rigged, email me direct. firstname.lastname@example.org
Hope this helps. MJ.