First of all I would like to say that I like LXDE a lot and I would to thank all the developers for their hard work! :-)
I use terminals quite a lot and lxterminal is really great for my needs - it's really fast, has tabs and at the same time looks nice :-) Now, that you can set scrollback it's almost perfect. Almost, because there's one thing bothering me...
I like to use Midnight Commander for my file managing needs. I am used to using "F10" shortcut to exit mc but as you are probably well aware it's also lxterminal's menu shortcut :-/ I keep turning on the menu and then I have to use mouse to exit Midnigt Commander. It's quite annoying when that happens, I must admit :-|
It would be really great if the lxterminal's shortcut could be disabled in the Preferences. I've read that for the very same reason (mc's F10 shortcut), this possibility was added to gnome-terminal :-)