Definitely worth it for me, but maybe wouldn't recommend for everyone. Unless you can't play loud at home and don't have a better stereo. I went from two mini's, two 3's, and a sub through the dragonfly (above), to just the mini's on BT, and thought 'wow, that sounds good, even has some punch'. I find I take them everywhere, being that much smaller and lighter. I love the high mids they provide. They seem to impossibly match the volume of the 3's, without the body and weight. I used them in a noisy warehouse, high gain max volume and got 2.5 hours before the batteries went. The 3's destroy them in that department.
Hope that helps. They do add to the dynamics seamlessly, but more cables, more batteries to use and charge, more money. You won't regret your choice , I think