Yes.
It's not a universal tool, as evidenced by the "entire screenful" example above, but I've been really happy with mine. I've also used deep-memory realtime, non-transition analyzers and prefer the LogicPort. A 1 Mbit/channel buffer at even a relatively slow 10 Msps fills up in only 100 msec.
I am surprised, though, that Intronix hasn't come out with a follow-on product with more sample memory. The LogicPort has been out for quite a while (as these things go).