magic submit vs ultimatedemon vs gsa

Will magic submit or/and ultimatedemon are good addition to GSA?
Or they are the similar tool, you have gsa you will not need magic submit or/and ultimatedemon?

We are not discussing other tools here really but our own. We have a demo version so you can see if it suits your needs or not. I for myself have never used these tools and never will as I am happy with what I make...not objective though

Each tool has their place but it's not nice to discuss topics like this on the developers forum. You're on another forum that we both are so ask there and I'll give you my two cents