I think it unfair to compare the bugs of layers and the bugs of lanes.
Layers: The point for me: similar audio clips that are processed and routed together
Lanes: the new track folder: more control over each clip, and its related function: automation,...
Currently the Lanes implementation is flawed: (as others have itemized)
hidden expansion button
drag and drop is erratic
cannot move lane to another track (??)
etc.
Even with all of lanes bugletts fixed the amount of screen consumed interferes with their use for me. 8.5.3 allows me to use 3-5 tracks expanded enough to actually see layers in action.
Too bad the layers bugs were never addressed.
And I find 8.5.3's smart tool for editing layers is faster and less demanding of my attention to the interface. The X smart tool filters are another multiclick menu, born of the de-cluttering hysteria. The options should be arranged as a set of SMALL buttons that change color to indication state. Quick, informative. Menus are stupid for this stuff.