I did a cycle with the injections a few years back, they were easy to use and i ovulated eventually, had to double the dose to get the follicle growing though, quite stubborn!! They are apparently quite good, the injections keep the lining of your uterus nice and thick, whereas clomid can thin it out a bit. I cant remember too much about the injections, i know i had to have them the same time every day in the evening. Then when the follicle was big enough we triggered the egg release with another different injection.
Now I'm on metformin and am going to give clomid a try!! Fingers crossed that i actually O!!
Good luck with the injections, are you on met too??