I have BOTH.
I'm pretty new to Android in general, even though I've been in IT for a couple decades plus. I gave up desktops as my main system (except for audio and video editing - my "side job") over 10 years for Notebooks; and BTW Notebooks or PC's in anything Biz related AIN'T gonna happen in the foreseeable future from my IT prospective - at home Notebooks will rule.
My first true "tablet" was in 2002, a Gateway 11" with a special "Tablet version" of Windows XP, a Touch Screen, Handwriting Recognition, Stylus "touch LCD" screen, on-screen keyboard and a real HDD with lots of ports. So much for CrApple's claim of being the first Tablet!
I got my TF101A w/KB Dock in Novmeber (Black Friday), added a 32GM MicroSD card and am happy as a clam other then the Corrupted ICS 4.01 update that creamed my Transformer! Now I BU my Apps/Data. I adore it's "transforming" adaptability, something the iFAD never had or has. Yea, some of the Execs I have in the company have to have their cliche iFADs, but they envy quietly my TF101 w/KB Dock.
When the Google Nexus 7 was announced, I was intrigued. I'd looked at other far more expensive 7 or 8" Tabs and that just didn't make sense for the form-factor (Small). At $195 (minus a $5 off coupon at Staples) i pulled the trigger and bought a 8GB. IT'S A POCKETISH SIZED Communications / Information / PIM / PDA / minor Entertainment device .... NOT a replacement for a "full size" tablet, especially one that "Transforms"!
I have some IT apps on my Nexus 7, all my email, txt, Skype, Voice and chat accounts on it. Some news reader apps, especially ones for Android and IT news. Pics of my family and grandkids. Video player to watch movies or TV shows off my VPN and Cloud service. A voice to txt notepad to auto emails it and NO Word Processing apps! (that's where the TF101 glows. With Cloud services used well, 8GB is just FINE and $195 is just GREAT.
I LOVE :-* Both of my Tablets! I could live without either the ASUS Transformer or the (ASUS) Google Nexus 7. Period.
Ps - I have had NONE of the major bugs reported on the many Hate Android "news" sites, except for the screen does lift up ever so slightly (.005mm) on one long side, and the screen back-light occasional flicker which is due to the "Auto Brightness" setting. Turn that off and NO Flicker. I'm sure ASUS / Google will patch that at some point.