We did not use another solution prior to F5. 

I did not use another solution prior to using F5 BIG-IP AFM.

We have got different products. We have got different vendors for firewalls. We have Palo Alto, Juniper, Cisco, etc.

We previously used Arbor and Radware.

I have also used Check Point in the past. I've also used a few other firewalls as well. 

I previously used Cisco solutions and I switched to F5 BIG-IP AFM because of the superior support.

I was previously using Imperva but my company wanted to switch to F5. 

We aren't currently offering any other solutions similar to F5.