Got the FAVI Entertainment one and definitely recommend this form factor. At first, I was a 'bit skeptical, but this is fantastic for people on the go!
I plan on using mine for a presentation I'm supposed to give in September.
For those interested, there's a special 10% off deal if you buy this and an Anker Astro E4 13000mah backup battery. I would've totally swooped up both at the same time, had that deal been available before.