You get analog oscilloscope features, good enough for almost everything you will need on a typical project aside from RF or DRAM. Really good logic analyzer capabilities including protocol decoding and injection of signals - with analog waveform generation, digital protocols, and a small 5V voltage supply. Saleae still can't send a byte over UART.
And it's scriptable! Python, C++, and LabView. Again, something Logic can't do.
I'm not saying someone just getting started needs one, but if you've been in the business for a while and/or are working remote and need something on your bench, this can do almost everything in one go. The Pro model looks even more serious but I've never needed anything that powerful.