[Asus Transformer TF700] sjgieson:
I have had the TF700 for just a few weeks, but go back Droid1 days with running custom roms. Current devices is a Gnex running experimental KitKat, and Nexus 7 that is the wives DD running 10.1.

My experience with TF is as follows get device, unlock, try to load custom rom find out USB data port is DOA, return device, get new one, take two days to get unlock app to work (just kept trying) rejoiced due to unlocking, download Cromi latests, flashed with DATA2SD and choosing Hunds kernel. Running it that way for about 10 days, getting frustrated and returning to CM based ROM (I have ran CM on GNEX and previous devices 80-90% of the time).

First off, let me say I may be wrong about my Cromi situation and probably should have held off posting my experiences. In the last 24 hours I have spent a lot more time on these forums and have sdbags 1:1 helping me getting Data2SD up and running on CM based 4.3 rom. I have been reading more of the posts instead of just skimming them loooking for what I need to fix something and move on. I have to say I am impressed at folks here (specifically _that and sdbags), their ingenuity and expertise (not mention willingness to contribute) is impressively and rarely seen these days in my opinion.

To answer your question about speed, yes, Cromi-x was fast, by far the fastest 4.2 rom to date on any device I have ran. I am sure this is due to Data2SD and the many many tweaks that have been made. However I know 4.2 is plagued by no trim, and at least on my Gnex 4.3 based roms are more responsive (less times hung with no response) than 4.2 roms. So first off I have bad taste in my mouth with anything related to 4.2 because of my Gnex experiences (probably wrong way to look at things I know). So going in I was little worried about 4.2 based.

Here is a list of annoyances with the rom being based on Asus and not AOSP:

Pulldown menu (pull up in the table interface) not being Googles menu (why change it)

Softkeyboard layout (trying to get the at symbol), no swiping (IIRC)

No cCLOCK widget (I wish I didn't like that CM thing so much...)

None of those were deal breakers, I had planned on addressing those eventually but the following occured:

First boot, confirmed data2sd was working, ran benchmarks, was impressed how well it ran etc. Installed my apps, all was good with the world love at first boot....

Sat it down on table (was in dock) rebooted, came back up to welcome screen, lock tablet was restore to factory. Perplexed, I reinstalled my apps, and went about my merry way (never re-ran benchmarks or really looked into the files system too much, my bad).

Next few days crashed reboots occurred randomly (maybe due to the Hunds OC kernel, should have tried stock kernel i suppose)

Finally one day a reboot occured and I rebooted back into my original environment I had setup in the first few hours of Cromi, my data from the environment I was in appeared lost. At this point the annoyances listed above (related to Asus, not the Cromi-rom) were too much.

I wiped everthing (even formated SD card), and went to CMB (why I didn't go striaght 10.2 I don't know). I have not had one single reboot/crash since the move, it is pretty peppy and I am getting really good benchmarks for not having data2sd installed, which is odd. If I didn't see how fast cromi was, I wouldn't be looking to get data2sd back as of right now i feel like 4.3 AOSP with data2sd has to be faster than 4.2 ASUS w/ data2sd.

Obviously, after writing the above issues I didn't follow good trouble shooting practices and perhaps made emotional not logical decisions.

sbdags - I will give Cromi-X another go :)