I have a bit of experience with both Academy and Lindberg kits
As has been said above, they can be hit or miss, depending on subject
Academy has hit a Home Run with hobbiest twice in my main modeling interest area,,,,the 1/48 Phantom kits that so many modelers have been enjoying,,,,,,and the 1/72 Crusader in my scale that are so good, that in my collection, they are the basis for a side by side collection of Each version of Crusader from F-8A to RF-8G SLEP
on the flipside of the Academy coin,,,,,,a bunch of the 1/72 WW II USN stuff is just old Frog molds cleaned up, and/or MRC molds from when they produced their own kits
Lindberg had THE B-58 model to get for decades,,,,granted it wasn't 1/72, it was 1/64 (1/8 inch scale), but, it was the only good model close to 1/72,,,,,,,,,they also did a very good LSD, the Tortuga
on the flipside of that, they did an HE-100 and FW-190D that I built back then, and would pass by in a hurry these days
but, keep in mind,,,,,Hasegawa had/has clunkers, also,,,,,most companies have at least one dud in their catalong
Rex