This is my first NFC enabled bluetooth speaker, and surprised how easy it was. Just tap the phone on the back (Google Nexus 4 in my case) and it pairs up instantly and loads up your music app, no mess, no fuss. For less advanced phones like the iPhone that don't have NFC, you can pair it up the conventional Bluetooth way.
Sound quality is very good, as is battery life when fully charged, I got over the quoted 12 hours between charges.
I wouldn't personally call this portable, it's larger than I imagined, it's portable around the home perhaps, but that's really it, you wouldn't want to take it anywhere outside the home, there are smaller bluetooth speakers available if you want a portable speaker for travelling.
The speaker itself comes with phone controls for answering calls (if it's your thing), but for me, I only have it paired up for media audio, turning off phone audio (on Android, long press the Bluetooth connection and you can untick the phone audio pairing).
The design is OK, it's not going to win any awards for sure, and it's available in other colours, some rather garish, thankfully I went for the dull and boring grey, I don't need bright coloured speakers to brighten my life :-)
All in all, a good all-rounder, with better than most battery life and good sound.