I just have my Z30 since 2 days and when I charged and get green light I installed the leak 1005. get crazy

all kind of good and nice stuff. The only problem I had that apps loading slow. 6-8 seconds and a lot of native apps also. reading news app taking 12 seconds and normally just click and there it start.
I decided to install OS 10.2.0.249 and WOW. CB start in a second instead of 8 seconds and I also notice that 1055 ismore lag and is not as smooth like .429 . The sound on the speakers sound better but lesser loud. The musicplayer is showing things right and the radio on 1055 has problems when you bicking but is good but missing thing like to rename a favorite instead only the frequenty number. But overall the leak is not bad to install to get a future sight at BBOS 10..
But if you wanted al that stuff and you don't care about above then I'm sure you will like 1055. The native apps like wheater, browser, setting start
all quick so I think apps like CB, Facebook etc are not compatible enough with 1055. And you also can install de music player from an older version and maybe that helps.