The studio is awaiting all files to be sent for mastering - you may want to at least email them with some info? And yea, things are moving along, but it's taking some time. It's a full album mastering and release nahmean
depends on what you prefer with serato you can use digital files on turntables but cdj's are compact and yea, it comes down to preference i reckon what do you think you'd prefer? also most (decent) club setups have a facility for vinyl/serato and cdj's