Well Kevin was kinda hard on you, but you were looking for it...
Anyways, he's totally right in my book. E-Jay was made for KIDS who want to make beats FOR FUN. Yes, you can add in loops and samples, but a lot of programs, like fruity do a WAY BETTER JOB at doing THE SAME THING. So, why take the cheap program if you can have a REAL program. If you want to make professionnal sounding beats, do not, I repeat, DO NOT use E-Jay.
Well, you can always take the loops from E-Jay and use them and work with them, but it's really not a good program. After a while, you'll see by yourself.