Hi, Keni. Yeah they definitely need fix the siz/resizing issues with them and I'll add to that there should be a "Hide Lane" feature.
Specifically...
Lanes should collapse down to the size of a track (why it's double height makes now sense at all).
The limit on how tall you can expand a lane needs to go away as well. They should be able to be expanded to at least full screen height just like tracks. This is important for editing.
We need the ability to manipulate the height of the Lanes independently of each other so I can have the lane I'm working on the height I want it to be without having to view the others at the same height. This makes it difficult to edit in correlation with other tracks which is extremely important to my workflow.
A "Hide Lane" feature needs to be implemented so I can get the takes I'm not current working on out of the way (same problem as the independent height issue). If I have a dozen takes and I can't see the rest of my project because the rest are unnecessarily in the way... that's a problem.
Fortunatly I can drag them around into different orders and have other tricks I do to view the other tracks but those are my hugest complaint.
I'd also like to see them remove the "one solo only at a time" restriction and have a function where you can double click the take you want and it pops open in the parent track... then the rest of the lanes can be hidden and only the lane in the parent track is visible... thus making editing that take in relation to the rest of the project FAR easier.
Also I'd like to see them steal a feature from the old version of Nuendo I used to use where in the main track you could just right click the track and choose which take would come to the surface while muting and removing editing capabilities from the rest of the takes (and have a preference setting window that can change this behavior in case you want to edit all takes in the track at once).
However... layers didn't really appease any of that properly and Lanes are easier on my silly little brain. There is a possibility I'm just totally daft and I work in an abnormal way.
;-)