Finally got my stuff transferred to the new the holiday slim. Got the old system deactivated and then activated on the new slim for all my 3 accounts. So far from what I saw (I didn't get the chance to play on it), the transfer utility basically makes an exact copy of the old system you are transferring from to the new one. So all the stuff from old slim is on the new system (downloaded games, demos, save files, accounts etc). So it looks like you don't have to do the transfer from each account separately, just the master one (which is what I did). Also as a precaution I saved the game saves to an external HDD just in case. But some games now don't even allow to save it to the HDD but just the PSN+ cloud which is BS! They should at least give the option to save it on the HDD (Crysis 2, BF3, Demon's Soul, KZ2 didn't have the HDD option). But good news is that the transfer utility copies everything AS IS to the new system and seems like everything is intact.
I ran a test just to see the noise levels of the BRDrive, and seems like it is about the same (may be more on the new model but not by much). But it does run quieter and cooler than the old slim. They took out the LEDs on the on/off and eject buttons and for wifi. The metallic looking strip (where on/off) is gone too. Looks like they were trying to cut the pennies every and any way they could.
Well I am glad I am finally done with this and hopefully won't have to do this again until PS4