First of all I like the clean and simple look of it a lot! - That said to emphasize the importance of being quite restrictive with all the funny ideas and suggestions people like myself will be making... The simplicity of it all is an important quality that needs protection from us designer-nerds.
Here are some problems Ive had in my first encounter with it, first one that I think may be because Im European - the time IN and OUT is not like Im used to, I think.

In the most common scandinavian controldesks (AVAB, that is) the time IN refers to the NEXT incoming Preset and the time OUT refers to the active Preset. It seems that in LXConsole both IN and OUT-time refer to the active preset, - the "live one".
That means that I can´t edit any "real crossfade information" - I don´t know what previous preset had as time OUT or what the next incoming has as a time IN. I can see it in the cuelist but to edit the crossfades I need to go to previous or next, which can be pretty annoying if you have times round let´s say a minute or so...
Lets say I decrease a presets time OUT to 3 sec from 10 sec.
To avoid an ugly crossfade I then need to go to the next cue and shorten its time IN to let say 4 seconds.
When that is done I must go back in the sequence (which takes X time) and then try what my new crossfade looks like - does it dip etc...
If I´m not fully satisfied with what I see I have to repeat this jumping back and forth some times, every time with one extra jump to change times also in the incoming not just the active preset.
To me it seems quite unfamiliar and strange

Playing around with this I also noticed something else:
If I run ch 1 at 100% in preset 1 and also in preset 2 but my time OUT for preset 1 is 5 seconds and the time IN for preset 2 is 10 seconds I get a dip during the crossfade. Channel one will go down to 50 % and then start rising to 100 again. Most controlboards I know automatically keep the channel at 100% during such a crossfade where the level of ch 1 obviously isn´t supposed to alter at all.
The same if channel 1 in preset 1 was at 80 % and in preset 2 at 75%.
The console ought to work with the differing 5 % only during a crossfade - not go all the way to/from zero.
In some lightdesks this "stay-function" is an option you can select in a "parameter setup" or "preferences".
Its very useful!

Bye for now!