i liked it better than the humanscale freedom, but ymmv. the liberty is beautifully designed - it uses your own bodyweight to ensure good posture.
drove 1h both ways across LA to sit it in before i bought one online for 1/2 the price that it was selling in the showroom ($700 vs $1400).
it was an awesome purchase - i could sit in it all day. i sold it to go digital nomad for a while, but when i pick a place to live, it'll be one of the first things i buy. jason calacanis' "cheap tables, expensive chairs" advice is bang-on imho: http://tr.im/k490
looks like the liberty has come down in price too: http://tr.im/k48A
