As you can see from my posts above, I've had a successful first IUI implant. I am currently 36 weeks and am counting down the days.
I'm really not sure of stats and success rates etc but going off my experience I would highly recommend it before shelling out thousands on IVF. For me it was roughly $370 out of pocket which I found really reasonable.
Let me know if I can help with any other information you might be interested in. Good luck with your first cycle! May all your wishes come true!