I say give the trial a shot and see how you like it usability-wise.
I picked it up. I used to use this for work some time back and it was by far my favourite screencapping tool.
The DirectX capture is nice, the auto-scrolling works much better for me than in other apps, the built-in FTP is sweet if you don't like things like http://www.rightload.org/
, the new TextSnap feature seems to work rather well. It's like OCR but for windows elements. Here's similar freeware implementation from the prolific nirsoft: http://www.nirsoft.net/utils/sysexp.html
It's also got the usual arrows and vector shapes and such to notate the captures.
Can't comment on the voice activated capture stuff since I never used it.
I'd say it's a pretty good deal for the price.
Not sure how their updating policy is between versions, though.