Pros
Overall, what strikes me the most about Walters is precisely the opposite of what a different (negative) review on Glassdoor says (or said, if it has been removed): Namely, the negative review claimed that Walters is "behind the times". However, in the roughly half a year that I've worked here, I have found precisely the opposite to be true! Specifically, I have found Walters Buildings to be very much at the cutting-edge -- at least in terms of engineering and design -- within the Post-Frame Building industry (which, incidentally, is an industry that is not known to be especially fast to change its practices). Indeed, this follows a long history of engineering innovation by Walters, as evidenced by numerous papers and patents, a sample of which follow:
David Bohnhoff, Daniel Pederson, Caynen Klessig, "Bending Properties for a Steel Reinforced Plastic-to-Wood Column Connection", 2016 ASABE Annual International Meeting, ASABE Paper No. 162460772.
Ronald Wolfe, David Bohnhoff, Robert Nagel, "Stiffness and Strength Properties of Shear Transfer Plate Connections", United States Department of Agriculture Forest Service, Forest Products Laboratory Research Paper FPL–RP–517.
(Note that Daniel Pederson, PE, and Caynen Klessig are both currently employed engineers at Walters Buildings, and the second study listed above was performed by Dr. David Bohnhoff and colleagues at the University of Wisconsin-Madison using materials supplied by Walters Buildings.)
Coming from an academic background, I must say that I am impressed with the willingness of the Walters family to invest money to place themselves solidly at the cutting-edge of engineering design. Moreover, the family atmosphere is very agreeable, and the entire group at the Allenton office is extremely easy to work with. The benefits are fine, and I would certainly recommend Walters to any and all parties interested in working here!
Cons
I suppose if you need a lot of direction then you might benefit from working at a larger company with a more standardized training process for new employees (this is what I have heard others say -- although, in my opinion, the training process that Walters already has in place is more than adequate).