Yes, this is truly a breeze to build so far! Beautiful fit of all the parts. Even being a Weekend Edition kit this has much to offer! I have made more progress on this, fitting the radiator and housing, intake shutters and the assembled cockpit:

Eduard Avia B-534 Serie III
I made one modification on the radiator installation. I added a new styrene forward face and a spacer glued to the kit radiator part to make this thicker and further forward in the duct. Since this kit has no PE fret I used scale plastic screen that I have here to replicate the radiator faces. After installing all of the parts I realized that you can barely see the front of the radiator through the inlet! I also added the small oil cooler that sits just behind the inlet shutters by using styrene and a bit of the plastic screen. Once all the parts were positioned it was quite easy to glue the two halves of the fuselage together and dry-fit the lower wings:

Eduard Avia B-534 Serie III
As is typical with open cockpit airplanes, not much is visible through the opening!

Eduard Avia B-534 Serie III