[Galaxy S III General] $@k$h@m:
Hello Warren,

Good to hear that you are having fun with your new phone.

Firstly yes i have used Tamasek's/JustArchie's CM12.1 ROM and it's quite good to be honest. So first i'll talk about it then i'll come to the kernel.

So 12.1 yes, the most noticeable change android L 5.1, all good, nice appearance, but i would say just think again for a bit.

A comparison between the two is a mammoth task but i'll try to brief it for you and tell you why i like the CM11 better even though it has android KK. It's upto to you though what you choose to flash. i even have a nice tip for you in the end :)

So first let's see the CM12.1 -

Quite stable, i used it for like a month or so for testing and got a good result. The performance was at par with the rest of the ROM available for S3. The Graphics, Audio and Processing quality is also good and is suitable for light use. Here's the catch though, Firstly the Gaaps, many gaaps available Android L are not compatible with the unofficial 12.1 so u'll have to look around to find the correct set of Gaaps.

Secondly i personally find that the CM 11 has a much neat finish as compared to CM 12.1, i don't really care about the android version as for me if i can have all the features of android L in a more stable KitKat ROM i don't usually upgrade my ROM. THe reasons are very simple

Firstly it's Unofficial, No Nightlies, rare updates. Also the unofficial ROM is alive only till the Developer is still working on it. Once he stops his work it's a very slim chance that you can get your bugs fixed.

As for the Official one, there are thousands of forums on Solutions to various Bugs and Numerous customization options. We can't really know whether the unofficial 12.1 supports all the things available for the official ROM.

Based on Performance both the ROMS perform equally, there's a camera Bug in the 12.1 which can be a problem sometimes but rest is all good.

On a personal side [not really of importance] i like the Calculator of the CM 11 better than CM 12.1. :P

Now the Kernel - arter97 is simply amazing, The most noticeable changes are - 1800 GHz overclocking [yeah from 1400 to 1800 BOOM!],

the Knock feature - Tap the screen to unlock the phone, no need to use any buttons, Battery Tweaks etc.

Also it used a custom engine to allocate the Files to various partitions to the memory so yeah it saves space plus we can even Increase our RAM a bit by using the Internal Memory of the Phone.

I am a Hardcore Gamer and use my phone to the limit sometimes [ Playing Asphalt 8, Real Racing, GTA: San-Andreas, FIFA 15 and WWE Immortals can take it's toll on the phone.] these games require very high end phones but with this kernel they all run liquid smooth on my phone without even a slightest bit of lag. So yeah i would surely recommend arter97's Kernel. PLUS u get Boeffla Audio Engine which is an added BOnuS :)

Touch WIZ -- Not Necessary, I flashed it using TWRP and it worked Just fine. :)

f2f - f2f has better memory allotments and it's pre configured, we usually don't have to enable it, it's much better than extD though.

TIP - arter97 supports dual Booting so you can even enjoy cm12.1 and cm 11 at the same tine ;) [Dual Booting i'll cover in the next post if you have a problem doing it ]

-----> Also U can use the Siyah Kernal, which work's just fine and even has an amazing Boot Image :P but now as much features as arter's.