Yes progression does make a very good boat.
They are vacuum bagged and put together very well. The rigging has always looked good to me and I like the ergonomics of the one I sat in.
I got a good look at one in Havasu earlier this summer and from a build point of view I liked what I saw and as the owner of 2 LaveyCrafts I would say Im pretty damm picky.
Their boats are AME 4000 and baltek set up- when vac bagged this is nearly indestructible, super-light and suffers none of the curses of a marine plywood deal.
Now styling is another thing- and this is all opinion.
I dont particularly like their styling to me its boxy and the swimstep on the i/o I saw was the funkiest thing Ive seen yet.
Progression claims they dont us the step to "drive up boat prices per foot", but nothing is stopping them from building a useable good looking step, and removing the step length from the boats claimed length and pricing accordingly.
The gelcoat was clean, but extremely basic - some guys claim they like "old school" thats ok- I like old school but with a bit more flair than what Ive seen on progressions.
Sometimes "Old School" is a choice the client makes - sometimes "Old School" simply means the builder simply doesn't posses the skill to do a better than basic job. Im not sure which is which in progressions case.
If you can live with the styling/detailing the boats themselves seem great.