I say get one, if you like. I've got one on my 98c, and it helps a lot. I don't have an electronic trigger, either. I'm not too sure how fast it is, but it is definitely faster than it was. I'd guess it's around 5-6 balls a second if I really rip it. I know that's not that impressive, but it does the job. I also love how it works every time I pull the trigger, which is more than can be said about a lot of tournament (read, electronic) guns.
Anywho, as for needing to pull the trigger with both fingers, gimme a break. I mean, I know I'm pretty jacked, but I have no trouble pulling it with one finger. It also gives me more space so I can fit my man hands into the trigger guard.
That said, it is still ridiculously stiff, especially if you've tried an electronic trigger. I switched out the trigger spring with one out of a pen, so it's a lighter pull. Like, a lot lighter. It's still harder than others though, since you still have to push the sear off the shelf on the bolt.
In conclusion, it's not as great as an electronic setup, but it does improve your gun. I recommend it.