This is my fourth or fifth BT headset. And I like this one a lot, particularly as it is very easy to use it with different devices. While it doesn't have a DSP, I find it works fine in the situations where I use it, either in the office or in my car.Complaints:- It only allows you to pair and switch between three BT devices and I have four (2 phones and 2 laptops that I use for VoIP).- It's a little slow to connect in comparison to the Motorola HS850, but that's partly because the default state is not to connect to the last device when you turn it on. With the Moto HS850 (and 810) it would immediately connect once you flipped open the boom. The main thing I liked about the Motorola 'boom series' 850, 810, 700 etc was the act of opening and closing the boom turns the headset on/off. With the X3 I sometimes find that I run out of battery just because I have left it on standby too long (measured in days).I'd recommend it to anyone who frequently switches between paired devices (as long as you only have 3).I've found that it's small, convenient and works well.