[Galaxy Tab S General] soulctcher:
Just got the 10.5" WiFi version with the Samsung keyboard (BEAUTIFUL together, I might add) a few days ago. I also picked up the Samsung mouse, as it's quite useful for when I'm using this for server connections, etc. I've populated the microSD slot with a 16GB that I had lying around; but have plans to grab a larger one soon. I tried, unsuccessfully, to run CM11 (which is not working with wireless AC it seems), thunder rom, which failed about 5 times out of the 6 I tried to install it. In the end, I just Odin'd to the factory image, rooted, and debloated. This preserved everything that I needed and wanted, without issue.

Currently, I have the following installed; your feedback is welcome for better or for worse:

AdAway - Obviously to remove ads

Air Comic Viewer (Paid) - Connects to my Linux Air Comic Server to read comics

AnyConnect - Connection to work VPN

BusyBox Pro - Obvious...and for goodness sakes, people...buy it and support the developer

Chrome Device Support Library - Supposedly helps performance of Chrome on Samsung devices.

DVFS Disabler - Xposed module to disable DVFS

ES File Explorer - Best file manager available

EZ Weather - Not totally sold on this weather widget, but it's not horrible either

F-Droid - Really, just for AdAway

Google Keyboard - Still my favorite soft keyboard

Hancom Office Hcell 2014 - Actually, not a bad office suite so far...I'll be comparing it against WPS

Hancom Office Hshow 2014 - See above

Hancom Office Hword 2014 - See above above

JuiceSSH (Paid) - SSH with tunnels and all kinds of goodies; totally worth the money

KitKat SD Card Full Access - Xposed module

LolliPop HD Theme - For a couple of icons

Marvel Unlimited - Moar comics!

MyFitnessPal - For fatties like me

Nest - Control the thermostat and smoke/carbon detectors

NovaLauncher (with Prime) - Much better than TouchWiz, IMHO

Open VPN Connect - For home VPN

Plex - Movie/TV consumption from my server

Remote Transmission - Control the torrents running on my server

RetroArch - Ultimate emulation app

Sixaxis Controller - What better to play RetroArch with?

Subsonic - Music client for my Subsonic server

Subtle - Some nice wallpapers

SuperSU (with Pro) - Again, support the devs!

TeslaUnread Plugin - A must when you've got Nova Prime

Titanium Backup (with Pro) - Can't say it enough...support developers

VNC Viewer - On the off chance I need to graphically remote into my server

Wanam Xposed - A must-have module for Xposed

WPS Office (Kingsoft Office) - For comparison against Hancom

Xposed Framework - Ultimate tweaking

YouTube AdAway - Because f**k ads

Performance is up after tweaks and freezing all the crap that I don't need/want. My goal is to replace the combination of my personal laptop (Lenovo Yoga 2 Pro) and my Nexus 7. The Tab S, even at the 10.5" size is light enough that I can hold it for very long periods of time to read/watch stuff. The screen is incredible. (By the way, I HIGHLY recommend using the Basic display profile. It removes all of the unnatural saturation that is so common in AMOLED screens. DisplayMate did a breakdown of the same technology on the Note 4 screen, the only other device to feature this, and it makes the color profile as close to reality as you can get in AMOLED.)

Anyways...I feel like I'm reaching the end of stuff to install and configure, but wanted to not only share my setup and get suggestions/feedback. Anyone have anything constructive to add?