I'll just add a little to RBennett's answer
first I think you can download the free trial and use it for 30 days, that's what I did, after 2 days I was ready to buy it..LOL
I find it helpful, and also a lot of fun when I'm in the mood to get creative and try something different with my pics.. I've gotten a lot of positive feedback from clients when I've given them a little something extra from a shoot..
here are a few folders with my topaz fun..
all of these were simple one click edits, there is a great deal of manual control if you choose to use it, so far I've only fine tuned a few pics this way.I'm generally quite happy with the presets..
this folder is just a bunch of random photos that I decided to play with, they were all OK shots, but I really liked what Topaz did to them
I think all of these were done the same way, topaz/adjust/spicify
spicify seems to be my favorite action, sometimes it works with people sometimes it makes them look horrible...
http://www.starrrshots.com/p39341649
the next 2 folders were photo shoots I did, and while preparing the files for my clients I decided to play with topaz and liked the results so I threw those in as freebies..
the Pirate pictures I just threw into one big folder, but generaally it's the original photo then the topaz edits following..
http://www.starrrshots.com/p333432631
the band shots are in seperate folders according to action used..
http://www.starrrshots.com/f1054445063