I agree with dibrial about the gray on black letters on the download bar. The contrast is not enough to be bale to read such small letters. Once a map has downloaded "Ready" would also be more readable in a slightly darker shade of green.
I downloaded Nevada and China as tests. Nevada went OK, but I had problems with China. The China map is large enough that I left it downloading and went to bed. In the morning the download had timed out, and I didn't have the map. I started it again, and again left the phone. When I came back the download had timed out again. Strangely though, when I exited the vector maps screen ad came back in it said "download successful", but there was no China map and the button didn't say "Ready". The third time I was successful, but I happened to look at the phone right at the point the download was finishing. Perhaps if the screen is off it's interfering with the download in some way? I'll try some other large maps later to see if I can reproduce this.
I don't like the new way of adding buttons to the right panel. when I first started Locus free all my right panel buttons had been wiped out, so I had none. Now to add them back I can only do one at a time, which is a multi-step process: Main menu, functions, add new button, select the button. You have to repeat that for every button, which is a PITA