The P1CC is an awesome tool, but "finicky" isn't the word I'd use for it. It's robust and simple.
I have had cases of the cut not being a perfect 90 degrees, but only when doing ridiculously small circular cuts in 40+ mm thick material and even then the deflection of the blade is usually maybe 0.5mm (so for all intents and purposes good enough)
It has a 900w motor so it gets warm (I think the saw uses the metal parts and the base of it as a heatsink) in use.
On the upside, it's a tool that'll blow your mind when doing any amount of custom circular cuts.
Example:
I needed to create 4 of these plywood tubes with a cutout in em. Frame was 18mm plywood, 39x58mm kerto beams and was covered in 8mm bendy plywood on both inside and outside. Now getting those 4 corners of the cutout to be circular would have been a stupid amount of work, trial and error and sanding to get anything decent without spending days on sanding and filler.
Enter the p1cc. I covered the outside with plywood (made the straight cuts beforehand with a tracksaw and marked a 25cm radius on the corners while the sheet was flat). On the background you can see the "corner" of the cutout before a single p1cc cut and in the foreground a "corner" that I cut with my p1cc by hand, on a nonflat convex surface. I did 16 of those cuts, all by hand, and each and every one of them was at 90 degrees.
This is where the p1cc stands above all other jigsaws, a 66mm deep 25cm radius cut on a convex surface through plywood with near perfect 90 degrees. I can think of no other tool (besides a 5 axis cnc machine) to do that.
IF you do this kind of work, the p1cc is irreplaceable, will make back the cost of the saw in no time at all.
IF you don't do (nor plan to) do this kind of work the p1cc will be a VERY nice jigsaw, but you probably don't need it.