Have two of these my wife got me as gifts and built herself no problems (she's pretty handy, but assembling these racks a breeze) and they really uncluttered our walk in closet  so I don't hesitate to recommend at least the 12 ball rack to anyone (sure others good as well).  Very sturdy and its so nice to have your arsenal right at your fingertips and not have to go through totes or even worse ball boxes in the garage to grab what you want.  Have had zero problems with balls cracking but also rotate regularly.

Is the wood beveled?

Hey Coach,

You should tell everyone that in Amazon these "PBR" are marketed as Optimal Branding Solutions. When I looked them up as "PBR Bowling Ball Racks", I got nothing from the Amazon search engine.

At least I assume Optimal Branding sells PBR racks.

https://www.amazon.com/Optimal-Branding-Solutions-Bowling-Ball/dp/B074Z5J43W

Yep that is what it says on the box so they are the same I believe (again just enjoy the product, no financial interest whatsoever).  To answer other questions it is not beveled but balls don't move easy once placed and since I rotate often it doesn't leave marks even on my softer pieces.  As for bags I do that for a few of my gems on the rack (and all that are in boxes in garage) but most the balls I actually rotate in and out and use fairly often.  Climate controlled where I have the racks and honestly I think its more the humidity changes and cold that cracks balls and since here in Sonora land (especially my closet) we seldom have either less worried about that.  Supposedly wood racks are bad on balls but had the one rack since Christmas with no problems (frequent rotating is key).  The convenience and being able to see and pick what you want to throw that day like with clothes is very nice.  Have too many balls according to wife so if one cracks then a new spot just opened for the Quantum Bias lol.